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Content Curator | Updated On - May 28, 2026

NTA conducted the NEET Exam on May 3 in a single shift from 2 PM to 5 PM in PBT Mode.

The NEET 2026 Question Paper will include 3 sections: Physics, Chemistry, and Biology (Botany & Zoology) with 180 Questions carrying a total of 720 Marks, as per the NEET Marking Scheme, +4 Marks for every correct answer, and -1 mark will be deducted for every wrong answer.

NEET 2026 Question Paper with Solution PDF (Code 13) is available here for download

NEET 2026 Question Paper with Solution PDF(Code 13)

NEET 2026 Code 13 Question Paper Download PDF Check Solutions

Question 1:

For a simple pendulum, having time period T, the variation of kinetic energy (K.E.) with time (t) is represented by:

  • (A)
  • (B)
  • (C)
  • (D)

Question 2:

A room heater is rated 400 W, 220 V. If the supply voltage drops to 200 V, what will be the power consumed (approximately)?

  • (A) 400 W
  • (B) 121 W
  • (C) 331 W
  • (D) 200 W

Question 3:

The angular speed of a flywheel is increased from 600 rpm to 1200 rpm in 10 s. The number of revolutions completed by the flywheel during this time is :

  • (A) 600
  • (B) 300
  • (C) 900
  • (D) 150

Question 4:

The sum of kinetic energy and potential energy of a simple pendulum bob is 0.02 joule. The speed of the simple pendulum bob at equilibrium position is approximately: (Consider mass of the bob = 20 g)

  • (A) 2.0 m/s
  • (B) 0.2 m/s
  • (C) 14.1 m/s
  • (D) 1.41 m/s

Question 5:

A 100-turn closely wound circular coil of radius 5 cm has a magnetic field of 3.14 \( \times \) 10\(^{-3}\) T at its centre. The current flowing through the coil, and the magnitude of the magnetic moment of this coil are, respectively : (Take \( \mu_0 = 4\pi \times 10^{-7} \) T m/A)

  • (A) 2.5 A, 20 A m\(^2\)
  • (B) 2 A, 4 A m\(^2\)
  • (C) 2.5 A, 2 A m\(^2\)
  • (D) 2 A, 10 A m\(^2\)

Question 6:

A submarine is designed to withstand an absolute pressure of 100 atm. How deep can it go below the water surface? (Consider the density of water = 1000 kg m\(^{-3}\), 1 atm = 1 \( \times \) 10\(^5\) Pa and gravitational acceleration g = 10 m/s\(^2\))

  • (A) 9900 m
  • (B) 990 m
  • (C) 9000 m
  • (D) 99 m

Question 7:

Match List I with List II.



Choose the correct answer from the options given below.

  • (A) A-IV, B-III, C-II, D-I
  • (B) A-IV, B-III, C-I, D-II
  • (C) A-I, B-IV, C-III, D-II
  • (D) A-IV, B-I, C-II, D-III

Question 8:

Match List I with List II:



Choose the correct answer from the options given below:

  • (A) A-III, B-II, C-I, D-IV
  • (B) A-II, B-III, C-IV, D-I
  • (C) A-I, B-IV, C-III, D-II
  • (D) A-IV, B-I, C-II, D-III

Question 9:

Five capacitors of capacitances \( C_1 = C_2 = C_3 = C_4 = 10 \mu F \) and \( C_5 = 2.5 \mu F \) are connected as shown, along with a battery of 50 V. The equivalent capacitance and the charges on each capacitor respectively are:

  • (A) 4 \( \mu F \), 250 \( \mu C \) on \( C_1 \) to \( C_4 \) and 125 \( \mu C \) on \( C_5 \)
  • (B) 5 \( \mu F \), 250 \( \mu C \) on all capacitors
  • (C) 5 \( \mu F \), 125 \( \mu C \) on \( C_1 \) to \( C_4 \) and 25 \( \mu C \) on \( C_5 \)
  • (D) 5 \( \mu F \), 125 \( \mu C \) on all capacitors

Question 10:

The amount of work done to raise a mass ‘m’ from the surface of the Earth to a height equal to the radius of the Earth ‘R’ will be

  • (A) mgR/2
  • (B) mgR
  • (C) mgR/4
  • (D) 2 mg R

Question 11:

When a ruler falls vertically, 5 different persons catch it with different reaction times. (g = 9.8 m s\(^{-2}\))

A. Person A has reaction time of 0.20 s.

B. Person B has reaction time of 0.22 s.

C. Person C has reaction time of 0.18 s.

D. Person D has reaction time of 0.19 s.

E. Person E has reaction time of 0.21 s.

What is the correct order of the distance travelled by the ruler for each person?

  • (A) B \(>\) E \(>\) A \(>\) C \(>\) D
  • (B) C \(>\) D \(>\) A \(>\) E \(>\) B
  • (C) C \(>\) D \(>\) A \(>\) B \(>\) E
  • (D) B \(>\) E \(>\) A \(>\) D \(>\) C

Question 12:

The power of a crane, which lifts a mass of 1000 kg to a height of 20 m in 10 s is: (g = 9.8 m/s\(^2\))

  • (A) 19.6 kW
  • (B) 19.6 W
  • (C) 39.2 kW
  • (D) 39.2 W

Question 13:

Consider two uncharged capacitors of equal capacitance 200 pF. One of them is charged by a 100 V supply and disconnected. Now this capacitor is connected to the uncharged capacitor. The amount of electrostatic energy lost in the process is:

  • (A) 0.5 J
  • (B) 1.0 \( \times \) 10\(^{-6}\) J
  • (C) 0.5 \( \times \) 10\(^{-6}\) J
  • (D) 1.0 J

Question 14:

An ac circuit contains a resistance of 1 k\( \Omega \), a capacitor of 0.1 \( \mu F \) and an inductor of 1 mH connected in series. The resonance frequency of the circuit is approximately:

  • (A) 15.9 kHz
  • (B) 20.7 kHz
  • (C) 10.1 kHz
  • (D) 13.5 kHz

Question 15:

The figure given below shows a long straight solid wire of circular cross-section of radius 'a' carrying steady current I. The current I is uniformly distributed across its cross-section. The plot which correctly represents the variation of magnetic field (B) with distance (r) from the axis of the conductor in the region is :

  • (A)
  • (B)
  • (C)
  • (D)

Question 16:

An electric heater supplies heat to a system at a rate of 100 W. If the system performs work at a rate of 75 J/s, then the rate at which internal energy increases will be:

  • (A) 75 W
  • (B) 25 W
  • (C) 100 W
  • (D) 125 W

Question 17:

The peak value of an alternating current is 5 A and frequency is 60 Hz. How long will the current, starting from zero, take to reach the peak value ?

  • (A) 1/120 s
  • (B) 1/240 s
  • (C) 1/30 s
  • (D) 1/60 s

Question 18:

In Young’s double slit experiment, using monochromatic light of wavelength \( \lambda \), the intensity of light at a point on the screen where the path difference is \( \lambda \), is K units. The intensity of light at a point where the path difference is \( \lambda/3 \) will be

  • (A) K
  • (B) 2K
  • (C) K/2
  • (D) K/4

Question 19:

Four statements are given (A is mass number):

A. The volume of a nucleus is proportional to A\(^{1/3}\).

B. The volume of a nucleus is proportional to A.

C. The difference in mass of an atom and its nucleus is called the mass defect.

D. The difference in mass of a nucleus and its constituents is called the mass defect.

Choose the correct answer from the options given below:

  • (A) A and D are true, but B and C are false
  • (B) B and D are true, but A and C are false
  • (C) B and C are true, but A and D are false
  • (D) A and C are true, but B and D are false

Question 20:

In interference and diffraction, the light energy is redistributed. If it reduces in one region, producing a dark fringe, it increases in another region, producing a bright fringe.

A. As there is no gain or loss of energy, these phenomena are consistent with the principle of conservation of energy.

B. Diffraction and interference are characteristics exhibited only by light waves.

Choose the correct answer from the options given below:

  • (A) A is false, but B is true
  • (B) A is true, but B is false
  • (C) A is true and B is also true
  • (D) Both A and B are false

Question 21:

A resistor is connected to a battery of 12 V emf and internal resistance 2 \(\Omega\). If the current in the circuit is 0.6 A, the terminal voltage of the battery is:

  • (A) 12 V
  • (B) 1.2 V
  • (C) 10 V
  • (D) 10.8 V

Question 22:

In a metre bridge experiment (see figure), the positions of the cell, E, and galvanometer, G, are interchanged. We shall observe in the galvanometer:

  • (A) Only the right-sided deflection
  • (B) Only the left-sided deflection
  • (C) There will be no deflection irrespective of the position of the jockey
  • (D) Both right-sided and left-sided deflection and at balance point, no deflection

Question 23:

Savitha, a XI standard student, while conducting an experiment to determine the effective length of a simple pendulum L, notes down the data of time taken to complete 30 oscillations as 60 s and hence calculates the length of the simple pendulum as : (Take \(\pi^2\) = 9.8, and g = 9.8 m/s\(^2\))

  • (A) 0.75 m
  • (B) 1 m
  • (C) 1.5 m
  • (D) 2 m

Question 24:

Which of the following statements are correct?

A. Inside a conductor, the electrostatic field is zero.

B. Electric field at the surface of a charged conductor does not depend on its surface charge density.

C. The interior of a charged conductor can have no excess charge in the static situation.

D. At the surface of a charged conductor, the electrostatic field must be normal to the surface at every point.

E. The electrostatic potential is zero everywhere inside a charged conductor.

Choose the correct answer from the options given below:

  • (A) A, C and D only
  • (B) A, C and E only
  • (C) C, D and E only
  • (D) A, B and D only

Question 25:

Two statements are given below:

A. When the forward bias voltage across a p-n junction diode increases above a certain threshold voltage, the diode current increases significantly.

B. This current is called reverse saturation current.

Choose the correct answer from the options given below:

  • (A) Both Statements A and B are true
  • (B) Both Statements A and B are false
  • (C) Statement A is true, but Statement B is false
  • (D) Statement A is false, but Statement B is true

Question 26:

In a concave lens, a ray of light emanating from the object parallel to the principal axis of the lens after refraction:

  • (A) passes through the second principal focus.
  • (B) appears to diverge from the first principal focus.
  • (C) passes through 2F, which is the radius of curvature of the lens.
  • (D) emerges parallel to the principal axis.

Question 27:

An unknown nucleus has a nuclear density of 2.29 \(\times\) 10\(^{17}\) kg/m\(^3\) and mass of 19.926 \(\times\) 10\(^{–27}\) kg. Its mass number A is approximately: (Take \(R_0\) = 1.2 \(\times\) 10\(^{–15}\) m, 4\(\pi\) = 12.56)

  • (A) 16
  • (B) 20
  • (C) 12
  • (D) 19

Question 28:

A galvanometer of resistance 100 \(\Omega\) gives full scale deflection for a current of 1 mA. It is converted into an ammeter of range 0 – 10 A. The shunt required is:

  • (A) 0.001 \(\Omega\)
  • (B) 0.10 \(\Omega\)
  • (C) 1.0 \(\Omega\)
  • (D) 0.01 \(\Omega\)

Question 29:

A thin wire of length ‘L’ and linear mass density ‘m’ is bent into a circular ring (in x-y plane) with centre ‘C’ as shown in figure. The moment of inertia of the ring about an axis yy′ will be :

  • (A) \(\frac{3mL^3}{8\pi}\)
  • (B) \(\frac{3mL^2}{8\pi^2}\)
  • (C) \(\frac{3mL^3}{8\pi^2}\)
  • (D) \(\frac{3mL^2}{8\pi^3}\)

Question 30:

For a travelling harmonic wave y(x, t) = 2.0 cos 2\(\pi\)(10t – 0.0080x + 0.35), where x and y are in cm and t in s. The phase difference between oscillatory motion of two points separated by a distance of 0.5 m is:

  • (A) 0.08 \(\pi\) rad
  • (B) 0.008 \(\pi\) rad
  • (C) 0.8 \(\pi\) rad
  • (D) 8 \(\pi\) rad

Question 31:

A box of mass 15 kg is kept on the floor of a stationary trolley. The coefficient of static friction between the box and the trolley is 0.12. Keeping the box in stationary state over the trolley, the maximum acceleration with which the trolley can be moved horizontally in m s\(^{–2}\) is: (g = 10 m/s\(^2\))

  • (A) 1.8
  • (B) 1.2
  • (C) 1.5
  • (D) 2.1

Question 32:

In the circuit shown below, the voltage appearing across the diode D will be of the form:

  • (A)
  • (B)
  • (C)
  • (D)

Question 33:

A flask contains argon and chlorine in the ratio of 2 : 1 by mass. The temperature of the mixture is 27°C. The ratio of root mean square speed of the molecules of the two gases \((V_{rms}^{Ar} / V_{rms}^{Cl})\) is: (Atomic mass of argon = 40.0 u and molecular mass of chlorine = 70.0 u)

  • (A) \(\frac{7}{4}\)
  • (B) \(\frac{2}{\sqrt{7}}\)
  • (C) \(\frac{\sqrt{7}}{2}\)
  • (D) \(\frac{7}{2}\)

Question 34:

Match List I with List II:



Choose the correct answer from the options given below:

  • (A) A–IV, B–III, C–II, D–I
  • (B) A–III, B–IV, C–I, D–II
  • (C) A–III, B–I, C–II, D–IV
  • (D) A–IV, B–I, C–II, D–III

Question 35:

The magnitude and direction of the acceleration produced in a body of mass 5 kg when two mutually perpendicular forces 8 N and 6 N act on it, are respectively:

  • (A) 2 m s\(^{–2}\); tan\(^{–1}\) (3/4) with 8 N force
  • (B) 2 m s\(^{–2}\); tan\(^{–1}\) (4/3) with 8 N force
  • (C) 2 m s\(^{–2}\); tan\(^{–1}\) (3/4) with 6 N force
  • (D) 20 m s\(^{–2}\); tan\(^{–1}\) (4/3) with 8 N force

Question 36:

The current I in the circuit shown below is: (All diodes are ideal and identical)

  • (A) 1/3 A
  • (B) 15/2 A
  • (C) 5/3 A
  • (D) 5/9 A

Question 37:

For a metal of work function 6.6 eV, which of the following wavelengths of incident radiation does not give rise to the photoelectric effect? (Take Planck’s constant as 6.6 \(\times\) 10\(^{–34}\) J s)

  • (A) 200 nm
  • (B) 100 nm
  • (C) 50 nm
  • (D) 150 nm

Question 38:

The speed of light in vacuum is taken as unity. If light takes 6 min 40 s to reach the Earth from the Sun, the distance between the Sun and the Earth in new unit is:

  • (A) 3 \(\times\) 10\(^8\)
  • (B) 500
  • (C) 3 \(\times\) 10\(^{10}\)
  • (D) 400

Question 39:

A rectangular wire loop of sides 8 cm and 3 cm with a small cut, is moving out of a region of uniform magnetic field of magnitude 0.3 T directed normal to the plane of the loop. The emf developed across the cut, if the velocity of the loop is 2 cm s\(^{–1}\), in a direction normal to the shorter side of the loop, will be :

  • (A) 1.8 \(\times\) 10\(^{–4}\) volt
  • (B) 1.3 \(\times\) 10\(^{–4}\) volt
  • (C) 1.2 \(\times\) 10\(^{–4}\) volt
  • (D) 4.8 \(\times\) 10\(^{–4}\) volt

Question 40:

The following plots show variation of velocity (v) with time (t) of a ball thrown vertically upward, and falling back. Which of the following plots is/are correct?

  • (A) B only
  • (B) A and E only
  • (C) C only
  • (D) D only

Question 41:

In a vernier calliper, 20 VSD coincide with 16 MSD (each division of length 1 mm). The least count of the vernier callipers is:

  • (A) 0.2 cm
  • (B) 0.1 cm
  • (C) 0.02 cm
  • (D) 0.01 cm

Question 42:

Each side of a metallic cube of mass 5.580 kg is measured to the 9.0 cm. Keeping the significant figures in view, the density of the material of the cube can be best expressed as X \(\times\) 10\(^3\) kg m\(^{–3}\) where the value of X is:

  • (A) 7.654
  • (B) 7.7
  • (C) 7.65
  • (D) 7.6

Question 43:

A ray of monochromatic light is passing through an equilateral prism (ABC) as shown in the figure. The refracted ray (QR) is parallel to its base (BC) and the angle of incidence (i) is 50°. Then the angle of deviation (\(\delta\)) is:

  • (A) 45°
  • (B) 55°
  • (C) 35°
  • (D) 40°

Question 44:

In the first excited state of hydrogen atom, the energy of its electron is –3.4 eV. The radial distance of the electron from the hydrogen nucleus in this case is approximately: (Take 1 eV = 1.6 \(\times\) 10\(^{–19}\) J, e = 1.6 \(\times\) 10\(^{–19}\) C and \(1/4\pi\epsilon_0\) = 9 \(\times\) 10\(^9\) N m\(^2\)/C\(^2\))

  • (A) 2.1 \(\times\) 10\(^{–8}\) m
  • (B) 2.1 \(\times\) 10\(^{–10}\) m
  • (C) 2.1 \(\times\) 10\(^{–11}\) m
  • (D) 2.1 \(\times\) 10\(^{–9}\) m

Question 45:

A uniform metallic wire having resistance 4 \(\Omega\) is bent to form a square loop (ABCD) (see figure). A resistance of 2 \(\Omega\) is connected between points B and D and a battery of 2 V is connected across points A and C as shown in the figure. Now the value of current (I) is :

  • (A) 4 A
  • (B) 4.5 A
  • (C) 8 A
  • (D) 2 A

Question 46:

Match List I with List II :



Choose the correct answer from the options given below :

  • (A) A-I, B-III, C-IV, D-II
  • (B) A-III, B-IV, C-I, D-II
  • (C) A-III, B-I, C-IV, D-II
  • (D) A-IV, B-I, C-III, D-II

Question 47:

Calculate emf of the half cell given below :

\(Pt(s) | H_2(g, 2 atm) | HCl(aq, 0 \cdot 02 M)\)

\(E_{H_2/H^+}^o = 0 V\)

(Given : \(\frac{2\cdot 303 RT}{F} = 0 \cdot 059\), \(\log 2 = 0 \cdot 3010\))

  • (A) \(-0 \cdot 109 V\)
  • (B) \(0 \cdot 109 V\)
  • (C) \(0 \cdot 035 V\)
  • (D) \(-0 \cdot 035 V\)

Question 48:

At 298 K, a certain buffer solution contains equal concentrations of \(X^-\) and \(HX\), \(K_b\) for \(X^-\) is \(10^{-10}\). What is the pH of this buffer solution ?

  • (A) 10
  • (B) 4
  • (C) 2
  • (D) 6

Question 49:

Given below are certain reactions. Identify the reaction for which \(K_p \neq K_c\).

  • (A) \(N_2(g) + O_2(g) \rightleftharpoons 2NO(g)\)
  • (B) \(H_2O(g) + CO(g) \rightleftharpoons H_2(g) + CO_2(g)\)
  • (C) \(N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)\)
  • (D) \(H_2(g) + I_2(g) \rightleftharpoons 2HI(g)\)

Question 50:

For a certain reaction R \(\rightarrow\) Product, the plot of concentration \([R]\) vs time has a negative slope as shown. The order of reaction is :

  • (A) 1
  • (B) 2\cdot 5
  • (C) 2
  • (D) 0

Question 51:

Consider the following reaction :

\(2A(g) + B(g) \rightarrow 2D(g)\)

\(\Delta U^o = -10 kJ mol^{-1}\) and \(\Delta S^o = -44 J K^{-1}\) at 298 K.

Identify the correct option with \(\Delta G^o\) for the reaction and spontaneity of the reaction at 298 K.

(Given : \(R = 8 \cdot 31 J mol^{-1} K^{-1}\))

  • (A) \(+0 \cdot 63568 kJ mol^{-1}\), non-spontaneous
  • (B) \(-0 \cdot 63568 kJ mol^{-1}\), spontaneous
  • (C) \(-1 \cdot 635 kJ mol^{-1}\), spontaneous
  • (D) \(+1 \cdot 635 kJ mol^{-1}\), non-spontaneous

Question 52:

Given below is an expression for the rate constant of a first order reaction occurring at a certain temperature, T (K).

\(\ln k = 14 \cdot 34 - \frac{1 \cdot 25 \times 10^4}{T}\)

The energy of activation in kcal mol\(^{-1}\) for the reaction is :

(Given : k in s\(^{-1}\), \(R = 1 \cdot 987 cal mol^{-1} K^{-1}\))

  • (A) \(12 \cdot 42\)
  • (B) \(18 \cdot 63\)
  • (C) \(14 \cdot 34\)
  • (D) \(24 \cdot 84\)

Question 53:

Select the reagents that reduce nitriles to primary amines :

A. (i) \(LiAlH_4\); (ii) \(H_2O\)

B. \(Sn + HCl\)

C. \(H_2/Ni\)

D. \(Na(Hg)/C_2H_5OH\)

E. \(Br_2/aq. NaOH\)

Choose the correct answer from the options given below :

  • (A) A, B and C only
  • (B) A, D and E only
  • (C) A, C and D only
  • (D) B, D and E only

Question 54:

The correct statement with regard to the secondary structure of DNA/RNA is :

  • (A) DNA possesses a double strand helix structure and contains thymine as one of the four bases.
  • (B) DNA possesses a single strand helix structure and contains uracil as one of the four bases.
  • (C) RNA possesses a double strand helix structure and contains uracil as one of the four bases.
  • (D) RNA possesses a single strand helix structure and contains thymine as one of the four bases.

Question 55:

During Lassaigne's test, the elements present in an organic compound are converted from :

  • (A) ionic form to ionic form
  • (B) covalent form to ionic form
  • (C) ionic form to covalent form
  • (D) covalent form to covalent form

Question 56:

Mixture of chloroform and acetone forms a solution with negative deviation from Raoult's law due to :

  • (A) stronger intermolecular forces between chloroform molecules than those between chloroform and acetone molecules.
  • (B) formation of hydrogen bonding between acetone and chloroform molecules.
  • (C) repulsive forces.
  • (D) increase in escaping tendency of molecules of each component.
Correct Answer: (B) formation of hydrogen bonding between acetone and chloroform molecules.
View Solution




Step 1: Understanding the Question:

The topic is Solutions, focusing on the non-ideal behavior of liquid mixtures and their deviations from Raoult's Law.


Step 2: Key Formula or Approach:

Negative deviation occurs when the interactive forces between different components (A-B) are stronger than the interactive forces within the pure components (A-A and B-B). This leads to a decrease in vapor pressure.


Step 3: Detailed Explanation:


Pure components: Chloroform (\(CHCl_3\)) and Acetone (\(CH_3COCH_3\)) molecules are held together by relatively weaker dipole-dipole interactions in their pure states.


Molecular Interaction: When mixed, the hydrogen atom of the chloroform molecule (which is acidified by the three electronegative chlorine atoms) forms a Hydrogen Bond with the carbonyl oxygen atom of the acetone molecule.


Effect on Pressure: This new H-bond interaction (A-B) is significantly stronger than the original A-A or B-B interactions. Because the molecules are now more tightly bound, they find it harder to escape into the gas phase.


Conclusion: The resulting vapor pressure of the mixture is lower than predicted by Raoult's Law, which is defined as a negative deviation.



Step 4: Final Answer:

The formation of hydrogen bonds between acetone and chloroform is the reason for the negative deviation observed.
Quick Tip: For negative deviations, look for evidence of new, strong interactions like H-bonding. These solutions always have an exothermic enthalpy of mixing (\(\Delta H_{mix} < 0\)) and a contraction in volume (\(\Delta V_{mix} < 0\)).


Question 57:

In a test tube containing a salt, a few drops of dilute \(H_2SO_4\) was added, which gave colourless vapours having the smell of vinegar. The vapours turned the blue litmus paper red. Identify the correct anion from the following :

  • (A) Carbonate, \(CO_3^{2-}\)
  • (B) Sulphide, \(S^{2-}\)
  • (C) Acetate, \(CH_3COO^-\)
  • (D) Sulphate, \(SO_4^{2-}\)

Question 58:

Identify the correct statement about \(ClF_3\) from the following options :

  • (A) It has T-shaped geometry with three lone pairs on Cl atom.
  • (B) It has T-shaped geometry with two lone pairs on Cl atom.
  • (C) It has a trigonal pyramidal geometry with two lone pairs on Cl atom.
  • (D) It has a planar trigonal geometry with two lone pairs on Cl atom.

Question 59:

Match List I with List II :



Choose the correct answer from the options given below :

  • (A) A-I, B-III, C-II, D-IV
  • (B) A-II, B-IV, C-III, D-I
  • (C) A-III, B-I, C-IV, D-II
  • (D) A-III, B-I, C-II, D-IV

Question 60:

The number of chlorine atoms present in the organic products X and Y of the following reactions, respectively, are :

  • (A) 3 and 3
  • (B) 6 and 6
  • (C) 6 and 3
  • (D) 3 and 6

Question 61:

Identify the incorrect statement from the following :

  • (A) Phosphorus, arsenic and antimony show catenation property.
  • (B) \(P(C_2H_5)_3\) and \(As(C_2H_5)_3\) form \(d\pi-d\pi\) bond with transition metals.
  • (C) Nitrogen can form \(d\pi-p\pi\) bond with oxygen.
  • (D) Nitrogen can form \(p\pi-p\pi\) multiple bonds with itself.

Question 62:

At a certain temperature, T (K), during a process, 500 J is absorbed by the system and work of 200 J is done by the system. Then change in internal energy of the system is :

  • (A) 700 J
  • (B) 400 J
  • (C) 300 J
  • (D) -300 J

Question 63:

Compound P (\(C_8H_8O\)) gives a red orange precipitate with 2,4-DNP reagent and it does not reduce Fehling's reagent. On drastic oxidation with chromic acid, P gives an aromatic product Q that produces effervescence on treating with aq. \(NaHCO_3\). Compounds P and Q, respectively, are :

  • (A)
  • (B)
  • (C)
  • (D)

Question 64:

The correct IUPAC name of the following compound is :

  • (A) 3-ethyl-5-methylheptane
  • (B) 3-methyl-5-ethylheptane
  • (C) 2,4-diethylhexane
  • (D) 3,5-diethylhexane

Question 65:

In the following reaction sequence, X and Z, respectively are :

  • (A) \(X = POCl_3\); \(Z = CH_3-CH(Br)-CH_3\)
  • (B) \(X = POCl_3\); \(Z = CH_3CH_2CH_2-Br\)
  • (C) \(X = H_3PO_3\); \(Z = CH_3-CH(Br)-CH_3\)
  • (D) \(X = H_3PO_3\); \(Z = CH_3CH_2CH_2-Br\)

Question 66:

When 1 dm\(^3\) of \(CO_2\) gas is passed over hot coke, the volume of gaseous mixture after complete reaction at STP becomes \(1\cdot 4\) dm\(^3\). The composition of the gaseous mixture at STP is :

  • (A) \(0\cdot 6\) dm\(^3\) of \(CO\), \(0\cdot 8\) dm\(^3\) of \(CO_2\)
  • (B) \(0\cdot 8\) dm\(^3\) of \(CO\), \(0\cdot 8\) dm\(^3\) of \(CO_2\)
  • (C) \(0\cdot 6\) dm\(^3\) of \(CO\), \(0\cdot 4\) dm\(^3\) of \(CO_2\)
  • (D) \(0\cdot 8\) dm\(^3\) of \(CO\), \(0\cdot 6\) dm\(^3\) of \(CO_2\)

Question 67:

The correct formal charges on oxygen atoms numbered 2, 1 and 3 respectively are :

  • (A) \(0, 0, 0\)
  • (B) \(-1, 0, +1\)
  • (C) \(+1, 0, -1\)
  • (D) \(0, +1, -1\)

Question 68:

Match List I with List II :



Choose the correct answer from the options given below :

  • (A) A-IV, B-III, C-II, D-I
  • (B) A-IV, B-III, C-I, D-II
  • (C) A-I, B-II, C-III, D-IV
  • (D) A-I, B-III, C-IV, D-II

Question 69:

The correct order of increasing metallic character of Na, Be, P, Mg and Si is :

  • (A) Be \(<\) Si \(<\) P \(<\) Mg \(<\) Na
  • (B) P \(<\) Si \(<\) Na \(<\) Mg \(<\) Be
  • (C) P \(<\) Si \(<\) Be \(<\) Mg \(<\) Na
  • (D) P \(<\) Mg \(<\) Be \(<\) Si \(<\) Na

Question 70:

The number of hydrogen atoms present in 5.4 g of urea is :

(Given : Molar mass of urea : 60 g mol\(^{-1}\), \(N_A : 6.022 \times 10^{23}\) particles mol\(^{-1}\))

  • (A) \(2.168 \times 10^{22}\)
  • (B) \(2.168 \times 10^{23}\)
  • (C) \(1.084 \times 10^{22}\)
  • (D) \(1.084 \times 10^{23}\)

Question 71:

In a qualitative analysis, Bi\(^{3+}\) is detected by appearance of precipitate of BiO(OH)(s). Calculate pH when the following equilibrium exists at 298 K :

BiO(OH)(s) \(\rightleftharpoons\) BiO\(^+\)(aq) + OH\(^-\)(aq), \(K = 4 \times 10^{-10}\)

(Given : \(\log 2 = 0.3010\))

  • (A) 4.699
  • (B) 5.286
  • (C) 8.714
  • (D) 9.301

Question 72:

Match List I with List II :

  • (A) A-I, B-III, C-IV, D-II
  • (B) A-II, B-IV, C-III, D-I
  • (C) A-II, B-III, C-I, D-IV
  • (D) A-II, B-III, C-IV, D-I

Question 73:

A bulb is rated at 150 watt, converting 8% energy into light. If energy of one photon is \(4.42 \times 10^{-19}\) J, how many photons are emitted by the bulb per second ?

  • (A) \(27.2 \times 10^{19}\)
  • (B) \(4.06 \times 10^{19}\)
  • (C) \(1.35 \times 10^{19}\)
  • (D) \(2.71 \times 10^{19}\)

Question 74:

The pair of molecules that are metamers among the following is :

  • (A) \(CH_3OCH_2CH_2CH_3\) and \(CH_3CH_2OCH_2CH_3\)
  • (B) \(CH_3CH_2CH_2OH\) and \(CH_3-CH(OH)-CH_3\)
  • (C) \(CH_3CH_2CH_2CH_2NH_2\) and \(CH_3CH_2-NH-CH_2CH_3\)
  • (D) Propanoic acid and Methyl acetate.

Question 75:

Identify the correct statements :

A. The molality of 2.5 g of ethanoic acid (Molar mass : 60 g mol\(^{-1}\)) in 75 g of benzene solution is 0.556 m.

B. The molarity of a solution containing 5 g of NaOH (molar mass : 40 g mol\(^{-1}\)) in 450 mL of solution is 0.278 M at 298 K.

C. Aquatic species are more comfortable in cold water.

D. The solubility of gas increases with decrease in pressure.

E. For a binary mixture of A and B, the mole fraction of B will be \(X_B = \frac{n_A}{n_A + n_B}\).

Choose the correct answer from the options given below :

  • (A) A, B and C only
  • (B) A, D and E only
  • (C) A and B only
  • (D) A and C only
Correct Answer: (A) A, B and C only
View Solution




Step 1: Understanding the Question:

The question assesses the correctness of multiple statements involving solution concentrations and Henry's law.


Step 2: Key Formulas and approach:

The topic is Solutions. We use the definitions of molarity (\(M\)), molality (\(m\)), mole fraction (\(X\)), and the factors affecting gas solubility.


Step 3: Detailed Solution:


Statement A: Molality \(= \frac{2.5/60}{0.075} = 0.556\) m. (Correct)
Statement B: Molarity \(= \frac{5/40}{0.450} = 0.278\) M. (Correct)
Statement C: Gas solubility increases with decreasing temperature. Cold water contains more dissolved oxygen, making it better for aquatic life. (Correct)
Statement D: Solubility of gas increases with increase in pressure (Henry's Law). (Incorrect)
Statement E: Mole fraction \(X_B = \frac{n_B}{n_A + n_B}\). The formula given in the statement is for \(X_A\). (Incorrect)


Step 4: Final Answer:

Statements A, B, and C are correct.
Quick Tip: Remember that for gas solubility, pressure has a direct relationship (Henry's Law) and temperature has an inverse relationship. This explains why soda goes flat when it warms up.


Question 76:

Which one of the following is an ambidentate ligand ?

  • (A) Oxalate
  • (B) Ethane-1,2-diamine
  • (C) Thiocyanate
  • (D) Ethylenediaminetetraacetate ion

Question 77:

The functional group that can be identified through phthalein dye test is :

  • (A) Carboxylic acid
  • (B) Alcohol
  • (C) Aldehyde
  • (D) Phenolic

Question 78:

Match List I with List II :

  • (A) A-IV, B-I, C-III, D-II
  • (B) A-III, B-IV, C-II, D-I
  • (C) A-II, B-III, C-I, D-IV
  • (D) A-I, B-II, C-IV, D-III

Question 79:

A solution of copper sulphate is electrolysed for 10 minutes with a current of 1.5 amperes. The mass of copper deposited at cathode is :

(Given : Molar mass of Cu = 63 g mol\(^{-1}\), 1 F = 96487 C mol\(^{-1}\))

  • (A) 0.2938 g
  • (B) 0.5876 g
  • (C) 2.4036 g
  • (D) 1.7018 g

Question 80:

Match List I (Quantum Numbers) with List II (Orbital) :

  • (A) A-II, B-III, C-IV, D-I
  • (B) A-I, B-II, C-III, D-IV
  • (C) A-II, B-I, C-III, D-IV
  • (D) A-IV, B-II, C-III, D-I

Question 81:

The major product Z formed in the following sequence of reactions is :

  • (A) CH\(_3\)CHO
  • (B) C\(_2\)H\(_5\)OH
  • (C) CH\(_3\)COOH
  • (D) CH\(_2=CH_2\)

Question 82:

Although +3 oxidation state is most common in lanthanoids, cerium still shows +4 oxidation state because :

  • (A) After losing one more electron, it acquires \(4f^{14}\) configuration.
  • (B) Its nearest inert gas is Radon.
  • (C) After losing one more electron, it acquires \(4f^0\) electronic configuration.
  • (D) Its atomic number is 61.

Question 83:

Methane reacts with steam at 1273 K in the presence of nickel catalyst to form :

  • (A) CO and H\(_2\)
  • (B) CO and H\(_2\)O
  • (C) CO\(_2\) and H\(_2\)
  • (D) CO\(_2\) and H\(_2\)O

Question 84:

Identify the incorrect statement from the following :

  • (A) Oxygen exhibits only \(-2\) oxidation state.
  • (B) The order of catenation property of Group 14 elements is C \(>>\) Si \(>\) Ge \(\approx\) Sn.
  • (C) Carbon has the ability to form \(p\pi-p\pi\) multiple bond with itself.
  • (D) ECl\(_3\) (E = B and Al) is a monomer when E = B and a dimer when E = Al.

Question 85:

Phenolphthalein is used as an indicator for the titration of sodium hydroxide solution against a standard solution of oxalic acid. The colour change that is observed at an alkaline pH close to the equivalence point during this titration is :

  • (A) pink to colourless
  • (B) pinkish red to yellow
  • (C) colourless to pink
  • (D) yellow to pinkish red

Question 86:

Identify the incorrect statement from the following :

  • (A) The largest and the smallest species among Mg, Mg\(^{2+}\), Al and Al\(^{3+}\) are Al and Mg\(^{2+}\) respectively.
  • (B) The IUPAC name of the element with atomic number 107 is Unnilseptium.
  • (C) The similarity in behavior of Li with Mg is referred to as 'diagonal relationship'.
  • (D) The oxidation state and covalency of Al in \([AlCl(H_2O)_5]^{2+}\) are 3 and 6 respectively.

Question 87:

The following two reactions give the same foul smelling product Z.

  • (A) \(X = AgCN\); \(Z = C_2H_5CN\)
  • (B) \(X = AgCN\); \(Z = C_2H_5NC\)
  • (C) \(X = KCN\); \(Z = C_2H_5CN\)
  • (D) \(X = KCN\); \(Z = C_2H_5NC\)

Question 88:

The calculated 'spin-only' magnetic moment of Ti\(^{2+}\)(3d\(^2\)) is :

  • (A) 3.87 BM
  • (B) 4.90 BM
  • (C) 2.84 BM
  • (D) 5.92 BM

Question 89:

Match List I with List II :

  • (A) A-III, B-IV, C-I, D-II
  • (B) A-III, B-I, C-IV, D-II
  • (C) A-II, B-I, C-IV, D-III
  • (D) A-IV, B-I, C-III, D-II

Question 90:

Two products X and Y are formed in the following reaction sequence.



The suitable method that can be used for the separation of products X and Y is :

  • (A) Continuous extraction
  • (B) Differential extraction
  • (C) Sublimation
  • (D) Steam distillation

Question 91:

Match List I with List II:

  • (A) A-II, B-I, C-IV, D-III
  • (B) A-II, B-III, C-I, D-IV
  • (C) A-I, B-IV, C-III, D-II
  • (D) A-I, B-II, C-IV, D-III

Question 92:

Exploring molecular, genetic and species-level diversity for products of economic importance is called: ____.

  • (A) Bioprospecting
  • (B) Biofortification
  • (C) Biomagnification
  • (D) Bioremediation

Question 93:

Which of the following statements are true with reference to the sex-determination in honeybees?

A. An offspring formed from the union of a sperm and an egg, develops as a female.

B. An unfertilized egg develops as a male by parthenogenesis.

C. A male has half the number of chromosomes than that of a female.

D. Males produce sperms by meiosis.

E. Honeybees have a haplodiploid sex-determination system.


Choose the correct answer from the options given below:

  • (A) A, B, C and E only
  • (B) A, B, C and D only
  • (C) B, C, D and E only
  • (D) A, B, D and E only

Question 94:

Match List I with List II:

  • (A) A-I, B-II, C-IV, D-III
  • (B) A-I, B-IV, C-III, D-II
  • (C) A-IV, B-III, C-II, D-I
  • (D) A-III, B-I, C-IV, D-II

Question 95:

In racemose inflorescence, _______________.

  • (A) the growth is limited
  • (B) flowers are solitary
  • (C) flowers are borne in an acropetal succession
  • (D) the main axis terminates in a flower

Question 96:

Since the origin and diversification of life on Earth, there have been five episodes of mass extinction of species. How is the ’sixth extinction’, which is in progress, different from the previous episodes?

  • (A) The current species extinction rates are far lower than those in previous episodes.
  • (B) The present species extinction rates are 100 to 1000 times faster than in the pre-human times.
  • (C) The present net species extinction rate is zero.
  • (D) The current species extinction rate is nearly 10 times faster than in previous episodes.

Question 97:

Alpha-helix is found in which level of protein structure? ____.

  • (A) Secondary structure
  • (B) Primary structure
  • (C) Tertiary structure
  • (D) Quaternary structure

Question 98:

The enzyme required for carboxylation in the Calvin cycle is: ____.

  • (A) PEP carboxylase
  • (B) RuBP carboxylase-oxygenase
  • (C) Carboxypeptidase
  • (D) Hexokinase

Question 99:

Arrange the following in the correct developmental sequence related to microsporogenesis:

A. Microspore tetrads

B. Sporogenous tissue

C. Pollen grains

D. Pollen mother cells


Choose the correct answer from the options given below:

  • (A) A, D, C, B
  • (B) D, A, C, B
  • (C) B, D, A, C
  • (D) B, D, A, B

Question 100:

Which of the following statements are not true regarding restriction endonucleases?


A. They are called molecular scissors.

B. These are the enzymes responsible for restricting the growth of bacteriophages in E. coli.

C. They cut the DNA only at the centre of the palindromic sites.

D. They remove nucleotides only from the ends of DNA fragments.

E. They recognise specific palindromic base-pair sequences.


Choose the answer from the options given below:

  • (A) C and D only
  • (B) A and E only
  • (C) D and E only
  • (D) A and B only

Question 101:

In the lac operon, the z gene codes for: ____.

  • (A) the repressor of lac operon
  • (B) transacetylase
  • (C) permease
  • (D) beta-galactosidase

Question 102:

Match List I with List II:

  • (A) A-III, B-IV, C-I, D-II
  • (B) A-IV, B-I, C-II, D-III
  • (C) A-I, B-II, C-III, D-IV
  • (D) A-II, B-III, C-IV, D-I

Question 103:

2(C\(_{51}\)H\(_{98}\)O\(_6\)) + 145O\(_2\) \(\rightarrow\) 102CO\(_2\) + 98H\(_2\)O + energy. The Respiratory Quotient (RQ) of a biomolecule used for respiration, as per the above equation, would be: ____.

  • (A) Less than 0.5
  • (B) Between 1.25 and 2
  • (C) 1.0
  • (D) Between 0.5 and 0.95

Question 104:

Which one of the following is not a characteristic of plant cells in the phase of elongation? ____.

  • (A) New cell wall deposition
  • (B) Cell enlargement
  • (C) Large conspicuous nuclei
  • (D) Increased vacuolation

Question 105:

Arrange the following steps of somatic hybridisation in a correct sequence:

A. Digestion of cell walls,

B. Isolation of naked protoplasts,

C. Fusion of protoplasts,

D. Isolation of single cells,

E. Growing hybrid protoplast.


Choose the correct answer from the options given below:

  • (A) D, B, A, E, C
  • (B) E, A, B, C, D
  • (C) E, B, A, D, C
  • (D) D, A, B, C, E

Question 106:

Match List I with List II:

  • (A) A-IV, B-III, C-II, D-I
  • (B) A-III, B-IV, C-I, D-II
  • (C) A-IV, B-III, C-I, D-II
  • (D) A-III, B-IV, C-II, D-I

Question 107:

In angiosperms, root hairs arise from which one of the following regions of the root? ____.

  • (A) The region of elongation
  • (B) The region of meristematic activity
  • (C) The region of maturation
  • (D) The root cap zone

Question 108:

Which of the following floral formula is the correct floral formula of Solanaceae family? ____.

  • (A) \(\oplus K_{(5)} C_{(5)} A_5 G_{(2)}\)
  • (B) \(\oplus K_5 C_5 A_5 G_{(2)}\)
  • (C) \(% K_{(5)} C_{(5)} A_5 G_{(2)}\)
  • (D) \(\oplus K_{(5)} C_{1+2+(2)} A_{(9)+1} G_1\)

Question 109:

Which one of the following is a triploid cell? ____.

  • (A) Synergid
  • (B) Primary endosperm cell
  • (C) Central cell
  • (D) Zygote

Question 110:

Match List I with List II:

  • (A) A-III, B-II, C-I, D-IV
  • (B) A-IV, B-III, C-I, D-II
  • (C) A-I, B-II, C-III, D-IV
  • (D) A-III, B-IV, C-II, D-I

Question 111:

The main criteria used for Five Kingdom Classification proposed by R.H. Whittaker (1969) included:

A. Cell structure,

B. Body organization,

C. Presence of flagellum,

D. Reproduction,

E. Phylogenetic relationships.


Choose the correct answer from the options given below:

  • (A) A, B and E only
  • (B) A, B, C, D and E
  • (C) B, C and D only
  • (D) A, B, D and E only

Question 112:

"The Evil Quartet" of biodiversity loss includes which of the following? ____.

  • (A) Over-exploitation; Alien species invasions; Soil pollution; Co-extinctions
  • (B) Habitat loss and fragmentation; Air pollution; Water pollution; Co-extinctions
  • (C) Habitat loss and fragmentation; over-exploitation; Alien species invasions; Co-extinctions
  • (D) Over-exploitation; Alien species invasions; Air pollution; Co-extinctions

Question 113:

Arrange the following steps of DNA fingerprinting in a correct sequence:

A. Isolation of DNA and its digestion by restriction endonucleases.

B. Hybridisation using a labelled VNTR probe.

C. Transferring of separated DNA fragments to synthetic membranes.

D. Detection of hybridised DNA fragments by autoradiography.

E. Separation of DNA fragments by electrophoresis.


Choose the correct answer from the options given below:

  • (A) A, E, B, C, D
  • (B) A, D, B, E, C
  • (C) A, B, D, C, E
  • (D) A, E, C, B, D

Question 114:

Which of the following statements are correct with reference to a transcription unit?

A. A transcription unit in DNA is defined primarily by three regions: promoter, structural gene and terminator.

B. The promoter is said to be located towards the 5’-end of the structural gene.

C. The promoter is a DNA sequence that provides binding site for RNA polymerase.

D. The promoter defines the template and coding strands.

E. The terminator is located towards the 3’-end of the coding strand and it defines the end of the process of transcription.


Choose the correct answer from the options given below:

  • (A) B, C, D and E only
  • (B) A, B, C, D and E
  • (C) A, B, C and D only
  • (D) A, C, D and E only

Question 115:

Which one of the following types of pollination brings genetically different types of pollen grains to the stigma? ____.

  • (A) Geitonogamy
  • (B) Xenogamy
    (C) Cleistogamy
  • (D) Autogamy

Question 116:

Which of the following is an in situ conservation method? ____.

  • (A) Seed Banks
  • (B) Sacred Groves
  • (C) Botanical Gardens
  • (D) Wildlife Safari Parks

Question 117:

Heterophyllous development in response to environment is an example of which of the following phenomena? ____.

  • (A) Redifferentiation
  • (B) Dedifferentiation
  • (C) Elasticity
  • (D) Plasticity

Question 118:

Match List I with List II:

  • (A) A-III, B-I, C-II, D-IV
  • (B) A-I, B-II, C-III, D-IV
  • (C) A-III, B-I, C-IV, D-II
  • (D) A-I, B-III, C-IV, D-II

Question 119:

Which of the following statements are correct regarding amino acids?

A. They are substituted methanes.

B. Serine is an aromatic amino acid.

C. Valine is a neutral amino acid.

D. Lysine is an acidic amino acid.


Choose the correct answer from the options given below:

  • (A) A and B only
  • (B) C and D only
  • (C) B and C only
  • (D) A and C only

Question 120:

In which one of the following, the ovules are not enclosed by an ovary wall and remain exposed? ____.

  • (A) Pinus
  • (B) Wolffia
  • (C) Funaria
  • (D) Selaginella

Question 121:

Which of the following statements are correct with reference to packaging of DNA helix?


A. Histones are organized to form a unit of eight molecules called histone octamer.

B. Histones are negatively charged basic proteins.

C. Histones are rich in the basic amino acid residues - lysine and arginine.

D. The positively charged DNA is wrapped around the histone octamer to form nucleosome.

E. The packaging of chromatin at higher levels requires an additional set of proteins called non-histone chromosomal proteins.


Choose the correct answer from the options given below:

  • (A) B, D and E only
  • (B) A, B and D only
  • (C) C, D and E only
  • (D) A, C and E only

Question 122:

Match List I with List II:

  • (A) A-II, B-IV, C-I, D-III
  • (B) A-IV, B-II, C-I, D-III
  • (C) A-III, B-I, C-IV, D-II
  • (D) A-I, B-III, C-II, D-IV

Question 123:

Which one of the following is the site for active ribosomal RNA synthesis? ____.

  • (A) Nucleolus
  • (B) Kinetochore
  • (C) Centrosome
  • (D) Chromatin

Question 124:

The main function of bulliform cells in grasses is: ____.

  • (A) to perform photosynthesis.
  • (B) to minimize water loss during water stress.
  • (C) to make the leaf impermeable to fungal spores.
  • (D) to transport water.

Question 125:

Which of the following statements are correct?

A. The Amazon rainforest being cut and cleared for cultivation of soyabeans is an example of habitat loss.

B. Steller’s sea cow and passenger pigeon became extinct due to over-exploitation by humans.

C. The Nile perch introduced into Lake Victoria in East Africa helped in population growth of cichlid fish in the lake.

D. Water hyacinth is an invasive species.

E. When a species becomes extinct, the plant and animal species associated with it are not affected.


Choose the correct answer from the options given below:

  • (A) A, B and D only
  • (B) B, C and D only
  • (C) A, B and E only
  • (D) C, D and E only

Question 126:

Which one of the following statements is not true about the universal rules of binomial nomenclature? ____.

  • (A) The first word in the biological name represents the specific epithet, while the second component denotes the genus.
  • (B) The specific epithet in the biological name starts with a small letter.
  • (C) Both the words in a biological name, when handwritten, are separately underlined or printed in italics.
  • (D) Biological names are generally in Latin.

Question 127:

Which one of the following disorders is caused by the substitution of Glutamic acid (Glu) by Valine (Val) at the sixth position of the beta globin chain of the haemoglobin molecule? ____.

  • (A) Phenylketonuria
  • (B) Haemophilia
  • (C) Sickle-cell anaemia
  • (D) Thalassemia

Question 128:

Find the incorrect statement(s) about photosynthesis from the following:

A. The water splitting complex is associated with PS I.

B. \(C_4\) plants use the \(C_3\) pathway of \(CO_2\) fixation as the main biosynthetic pathway.

C. In \(C_4\) plants photorespiration does not occur.

D. \(C_3\) plants exhibit ’Kranz’ anatomy.

E. ATP synthesis in chloroplast occurs through chemiosmosis.


Choose the answer from the options given below:

  • (A) B and C only
  • (B) B and E only
  • (C) B only
  • (D) A and D only

Question 129:

Match List I with List II:

  • (A) A-III, B-IV, C-II, D-I
  • (B) A-IV, B-III, C-II, D-I
  • (C) A-I, B-II, C-III, D-IV
  • (D) A-III, B-II, C-IV, D-I

Question 130:

Identify the correct statements about biomolecules.


A. Lipids are generally water soluble.

B. Proteins are polypeptides.

C. Polysaccharides are long chains of sugars.

D. Adenine and guanine are substituted pyrimidines.

E. Almost all enzymes are proteins.


Choose the correct answer from the options given below:

  • (A) A, B and C only
  • (B) B, D and E only
  • (C) B, C and E only
  • (D) C, D and E only

Question 131:

Match List I with List II:

  • (A) A-I, B-IV, C-III, D-II
  • (B) A-I, B-III, C-II, D-IV
  • (C) A-II, B-IV, C-III, D-I
  • (D) A-II, B-I, C-III, D-IV

Question 132:

Identify the correct sequence of steps in each cycle of Polymerase Chain Reaction: ____.

  • (A) Denaturation \(\rightarrow\) Extension \(\rightarrow\) Annealing
  • (B) Denaturation \(\rightarrow\) Annealing \(\rightarrow\) Extension
  • (C) Annealing \(\rightarrow\) Denaturation \(\rightarrow\) Extension
  • (D) Extension \(\rightarrow\) Annealing \(\rightarrow\) Denaturation

Question 133:

How many ATP and NADPH molecules are required to make one molecule of glucose through the Calvin pathway? ____.

  • (A) 12 ATP and 18 NADPH
  • (B) 18 ATP and 12 NADPH
  • (C) 6 ATP and 12 NADPH
  • (D) 24 ATP and 18 NADPH

Question 134:

Match List I with List II:

  • (A) A-IV, B-II, C-I, D-III
  • (B) A-I, B-IV, C-III, D-II
  • (C) A-II, B-III, C-IV, D-I
  • (D) A-III, B-I, C-IV, D-II

Question 135:

Which of the following statements are correct with respect to DNA separation, isolation and visualization?

A. The cutting of DNA is done by molecular scissors.

B. The DNA fragments separate according to their size in an agarose gel, upon electrophoresis.

C. The separated DNA fragments can be seen without staining when exposed to UV light.

D. The separated DNA fragments, when stained with ethidium bromide, can be seen in visible light.


Choose the correct answer from the options given below:

  • (A) A and B only
  • (B) B and D only
  • (C) A and D only
  • (D) B and C only

Question 136:

What is the probability of having children with 'O' blood group, where both mother and father are heterozygous for 'A' and 'B' blood group, respectively ?
\medskip

  • (A) 50%
  • (B) 75%
  • (C) 0%
  • (D) 25%

Question 137:

Match List I with List II



Choose the correct answer from the options given below :
\medskip

  • (A) A-III, B-II, C-I, D-IV
  • (B) A-I, B-II, C-IV, D-III
  • (C) A-II, B-I, C-III, D-IV
  • (D) A-II, B-I, C-IV, D-III

Question 138:

Insertion of a foreign DNA at BamHI site in an E. coli cloning vector pBR322 results in the loss of antibiotic resistance towards:
\medskip

  • (A) Ampicillin and tetracycline
  • (B) Tetracycline
  • (C) Ampicillin
  • (D) Gentamycin

Question 139:

What is the reason behind production of large holes in 'Swiss Cheese' ?
\medskip

  • (A) The production of large amount of \(CO_2\) and \(H_2\) by Trichoderma polysporum
  • (B) The production of large amount of \(CO_2\) by Clostridium butylicum
  • (C) The production of large amount of \(CO_2\) and \(H_2\) by lactic acid bacteria called Lactobacillus
  • (D) The production of large amount of \(CO_2\) by Propionibacterium sharmanii

Question 140:

Which of the following is not an example of convergent evolution?
\medskip

  • (A) Wings of butterflies and birds
  • (B) Flippers of penguins and dolphins
  • (C) Fore limbs of whales and bats
  • (D) Eyes of octopuses and mammals

Question 141:

Non-membrane bound cell organelles found in both prokaryotic and eukaryotic cells are:
\medskip

  • (A) Mitochondria
  • (B) Lysosomes
  • (C) Centrosomes
  • (D) Ribosomes

Question 142:

Ecological pyramids represent the relationship between the organisms at different trophic levels and they are generally inverted for :
\medskip

  • (A) Pyramid of biomass in grassland
  • (B) Pyramid of biomass in sea
  • (C) Pyramid of number in grassland
  • (D) Pyramid of energy in pond ecosystem

Question 143:

Arrange the following events occurring in Renin-Angiotensin mechanism in the correct order :

A. Increase in blood pressure and Glomerular filtration rate.

B. Reabsorption of \(Na^+\) and water from distal parts of tubule due to Aldosterone.

C. Fall in Glomerular filtration rate.

D. Vasoconstriction by Angiotensin II and release of Aldosterone.

E. Renin converts Angiotensinogen into Angiotensin I, followed by Angiotensin II.

Choose the correct answer from the options given below :
\medskip

  • (A) C, E, D, B, A
  • (B) A, C, E, B, D
  • (C) A, D, B, E, C
  • (D) C, A, B, D, E

Question 144:

Choose the correct statements regarding population interactions between two species.

A. In both parasitism and commensalism, only one species benefits and the other species is harmed.

B. Both species benefit in mutualism.

C. Both species benefit in commensalism.

D. In parasitism, only one species benefits and the other species is harmed.

E. In amensalism, one species is harmed and the other is unaffected.

Choose the correct answer from the options given below :
\medskip

  • (A) B and E only
  • (B) B, D and E only
  • (C) A and B only
  • (D) A and D only

Question 145:

In which animal do haploid cells divide mitotically to produce gametes ?
\medskip

  • (A) Male frogs
  • (B) Male honeybees
  • (C) Male grasshoppers
  • (D) Male earthworms

Question 146:

In humans, respiration occurs in the following steps. Arrange these steps in the correct order.

A. Diffusion of \(O_2\) and \(CO_2\) between blood and tissues

B. Diffusion of \(O_2\) and \(CO_2\) across alveolar membrane

C. Pulmonary ventilation by which atmospheric air is drawn in and \(CO_2\) rich alveolar air is released out

D. Cellular respiration

E. Transport of gases by the blood

Choose the correct answer from the options given below:
\medskip

  • (A) A, B, C, D, E
  • (B) E, A, C, D, B
  • (C) C, B, E, A, D
  • (D) C, A, B, E, D

Question 147:

The following reaction depicts the activity of a particular class of enzymes :



Identify the enzyme class 'E' from the following options :

  • (A) Ligases
  • (B) Transferases
  • (C) Lyases
  • (D) Isomerases

Question 148:

Match List I with List II



Choose the correct answer from the options given below :
\medskip

  • (A) A-II, B-III, C-I, D-IV
  • (B) A-IV, B-III, C-II, D-I
  • (C) A-II, B-III, C-IV, D-I
  • (D) A-III, B-II, C-IV, D-I

Question 149:

Which of the following equations depicts Verhulst-Pearl logistic population growth ?
\medskip

  • (A) \(\frac{dN}{dt} = rN \left(\frac{K-N}{N}\right)\)
  • (B) \(\frac{dN}{dt} = rN \left(\frac{K-N}{K}\right)\)
  • (C) \(\frac{dN}{dt} = rN \left(\frac{K}{K-N}\right)\)
  • (D) \(\frac{dN}{dt} = rN \left(\frac{K+N}{K}\right)\)

Question 150:

Arrange the following cell layers/structures around the female gamete from outer to inner side :

A. Zona pellucida

B. Perivitelline space

C. Corona radiata

D. Plasma membrane of ovum

Choose the correct answer from the options given below :
\medskip

  • (A) C, A, D, B
  • (B) C, A, B, D
  • (C) D, B, A, C
  • (D) A, C, B, D

Question 151:

Which one of the following is an appropriate example of 'sexual deceit' ?
\medskip

  • (A) Sea anemone and clown fish
  • (B) Female wasp and fig
  • (C) Ophrys and bumblebee
  • (D) Cuckoo and crow

Question 152:

Match List I with List II

  • (A) A-IV, B-III, C-II, D-I
  • (B) A-III, B-I, C-II, D-IV
  • (C) A-I, B-II, C-III, D-IV
  • (D) A-III, B-II, C-I, D-IV

Question 153:

Select the correct statements regarding cell membrane in eukaryotic cell.

A. Membrane of human RBCs has approximately 52% protein.

B. Major phospholipids are arranged in a bilayer.

C. Extensions of the plasma membrane into the cell form mesosomes.

D. Tails towards the inner part of lipids are hydrophobic and thus protected from aqueous medium.

E. Glycocalyx is present on the outer surface of the plasma membrane.

Choose the correct answer from the options given below :
\medskip

  • (A) C, D and E only
  • (B) B, C and E only
  • (C) A, C and E only
  • (D) A, B and D only

Question 154:

Choose the correct statements regarding cell organelles and their inclusions.

A. The endomembrane system includes Golgi complex, endoplasmic reticulum and mitochondria.

B. Rough endoplasmic reticulum bears ribosomes on its surface.

C. Both mitochondria and plastids have circular DNA.

D. A network of microtubules, microfilaments and intermediate filaments present in the cytoplasm is called cytoskeleton.

E. Mitochondrion is a single membrane-bound structure.

Choose the correct answer from the options given below :
\medskip

  • (A) A, B and C only
  • (B) A and B only
  • (C) C, D and E only
  • (D) B, C and D only

Question 155:

The toxin proteins isolated from Bacillus thuringiensis, coded by which of the following genes would control cotton bollworms and corn borer, respectively ?
\medskip

  • (A) cryIAc and cryIAb
  • (B) cryIIAb and cryIAc
  • (C) cryIAc and cryIIAb
  • (D) cryIAc and cryIIAb

Question 156:

The JGA (Juxta Glomerular Apparatus) is a special sensitive region formed by cellular modifications in ________ related to the same nephron.
\medskip

  • (A) Proximal convoluted tubule and afferent renal arteriole
  • (B) Distal convoluted tubule and efferent renal arteriole
  • (C) Proximal convoluted tubule and efferent renal arteriole
  • (D) Distal convoluted tubule and afferent renal arteriole

Question 157:

Choose the correct statements regarding frog's anatomy.

A. Hepatic portal system is the special venous connection between liver and intestine.

B. There are twelve pairs of cranial nerves arising from the brain.

C. The ureters and oviducts open separately into the cloaca in female frogs.

D. Hind-brain consists of cerebellum, medulla oblongata and optic lobes.

E. Sinus venosus joins the right atrium of heart.

Choose the correct answer from the options given below:
\medskip

  • (A) B and D only
  • (B) A, B and C only
  • (C) A, C and E only
  • (D) B and C only

Question 158:

Choose the correct answer from the options given below :



\medskip

  • (A) A-III, B-II, C-IV, D-I
  • (B) A-IV, B-II, C-I, D-III
  • (C) A-II, B-III, C-I, D-IV
  • (D) A-II, B-III, C-IV, D-I

Question 159:

The sixth mutant codon of beta globin gene causing polymerization of Haemoglobin and change in RBC shape is ________
\medskip

  • (A) CAG
  • (B) GUG
  • (C) AUG
  • (D) GAG

Question 160:

Male frogs can be distinguished from female frogs due to the presence of:

A. Bulging eyes

B. Vocal sacs

C. Webbed digits in feet

D. Copulatory pad on first digit of fore limbs

E. Olive green-coloured skin with dark irregular spots

Choose the correct answer from the options given below:
\medskip

  • (A) B and D only
  • (B) B and C only
  • (C) A and B only
  • (D) C and E only

Question 161:

The human protein named \(\alpha\)-1-antitrypsin, obtained from transgenic animals, is used for the treatment of ________.
\medskip

  • (A) Alzheimer's disease
  • (B) Emphysema
  • (C) Cystic fibrosis
  • (D) Rheumatoid arthritis

Question 162:

Match List I with List II



Choose the correct answer from the options given below:

  • (A) A-II, B-III, C-IV, D-I
  • (B) A-III, B-II, C-I, D-IV
  • (C) A-III, B-II, C-IV, D-I
  • (D) A-II, B-III, C-I, D-IV

Question 163:

The WBC count of a person's blood sample is 8000/cu.mm. How many eosinophils and lymphocytes would be in the same blood sample approximately ?
\medskip

  • (A) 300 - 500/cu.mm and 500 - 700/cu.mm, respectively
  • (B) 300 - 500/cu.mm and 1200 - 1500/cu.mm, respectively
  • (C) 100 - 120/cu.mm and 160 - 200/cu.mm, respectively
  • (D) 160 - 240/cu.mm and 1600 - 2000/cu.mm, respectively

Question 164:

Match List I with List II with respect to chronology of evolution of life forms :



Choose the correct answer from the options given below :

\medskip

  • (A) A-II, B-IV, C-I, D-III
  • (B) A-I, B-II, C-III, D-IV
  • (C) A-III, B-IV, C-I, D-II
  • (D) A-II, B-IV, C-III, D-I

Question 165:

Match List I with List II:





\medskip

  • (A) A-IV, B-II, C-I, D-III
  • (B) A-III, B-IV, C-II, D-I
  • (C) A-III, B-IV, C-I, D-II
  • (D) A-IV, B-III, C-I, D-II \end{samepage}

Question 166:

The following are the stages of life cycle of Plasmodium. Arrange the stages in the proper order.

A. The parasites reproduce asexually in RBCs, bursting the cells.

B. The parasites reproduce asexually in liver cells, bursting the cells and releasing into blood.

C. Gametocytes develop in RBCs.

D. Sporozoites reach the liver through the blood.

E. Female mosquito injects sporozoites into humans during bite.

Choose the correct answer from the options given below :
\medskip

  • (A) E, D, B, A, C
  • (B) C, A, B, D, E
  • (C) A, B, C, D, E
  • (D) E, C, D, B, A

Question 167:

Match List I with List II related to embryonic development at various months of pregnancy:

  • (A) A-II, B-IV, C-III, D-I
  • (B) A-III, B-II, C-IV, D-I
  • (C) A-II, B-III, C-IV, D-I
  • (D) A-IV, B-II, C-III, D-I

Question 168:

The flightless bird with forelimbs modified as paddle-like structures suited for swimming is known as:
\medskip

  • (A) Aptenodytes
  • (B) Neophron
  • (C) Psittacula
  • (D) Struthio

Question 169:

Select the incorrect statements from the following :

A. Digestive system in Platyhelminthes is incomplete.

B. Bilateral symmetry is a characteristic feature of adult Echinoderms.

C. Pseudocoelom is possessed by Aschelminthes.

D. Notochord is persistent throughout life in the class Chondrichthyes.

E. Members of class Reptilia maintain a constant body temperature.

Choose the answer from the options given below :
\medskip

  • (A) A and C only
  • (B) B and E only
  • (C) C and D only
  • (D) B and D only

Question 170:

A group of researchers procured some fish-like animals and upon investigation the following characters were observed:

A. Endoskeleton was made of cartilage.

B. Ectoparasitic; as they were found attached on fish skin with their circular sucking mouth.

C. Paired fins and scales are absent, but 7 pairs of gill slits were present.

Which of the following species of animals did they consider to fit best with these characters?
\medskip

  • (A) Petromyzon sp.
  • (B) Branchiostoma sp.
  • (C) Scoliodon sp.
  • (D) Exocoetus sp.

Question 171:

Choose the correct statements regarding muscle contraction.

A. A motor neuron carries a signal sent by the Central Nervous System (CNS) to the sarcolemma of the muscle fibre.

B. The neural signal generates an action potential which causes the release of \(Ca^{++}\) into sarcoplasm.

C. Increase in \(Ca^{++}\) inactivates the actin for breaking cross bridges.

D. Actin binds to the myosin head to form a cross bridge.

E. Shortening of sarcomere takes place, by pulling actin filaments towards the centre of 'A' band.

Choose the correct answer from the options given below:
\medskip

  • (A) C and E only
  • (B) A, B and E only
  • (C) A and B only
  • (D) C and D only

Question 172:

Choose the correct statement regarding GIFT to overcome infertility.
\medskip

  • (A) Ova collected from a female donor are transferred to the uterus of an infertile female.
  • (B) Early embryos with up to 8 blastomeres are transferred into the fallopian tube of an infertile female.
  • (C) It is the transfer of an ovum collected from a donor into the fallopian tube of another female who cannot produce ovum but can provide suitable environment for fertilization and development.
  • (D) Early embryos with up to 8 blastomeres are transferred to the uterus of an infertile female.

Question 173:

Which of the following statements are correct with reference to human endoskeleton?

A. Human skull is monocondylic.

B. The joint between any two adjoining vertebrae is a cartilaginous joint.

C. In human beings, the number of cervical vertebrae is seven.

D. All ribs except the last 2 pairs are bicephalic.

E. The occipital bone of skull is articulated with atlas vertebra.

Choose the correct answer from the options given below:
\medskip

  • (A) B, C and E only
  • (B) C, D and E only
  • (C) A, B and D only
  • (D) B and E only

Question 174:

Spermatogonia undergo a series of cell divisions to produce sperms. Select the correct statements from the following :

A. Spermatogonia always undergo meiotic cell division.

B. Primary spermatocytes divide mitotically to produce secondary spermatocytes.

C. Secondary spermatocytes, through their second meiotic division, produce haploid spermatids.

D. Spermatids produce spermatozoa through mitosis.

E. Spermatids transform into spermatozoa by spermiogenesis.

Choose the correct answer from the options given below :
\medskip

  • (A) C and E only
  • (B) A, C and E only
  • (C) B, C and D only
  • (D) A and E only

Question 175:

Select the incorrect statements with reference to Rh grouping.

A. Erythroblastosis foetalis is a condition observed having foetus with \(Rh^{-ve}\) blood and mother with \(Rh^{+ve}\) blood.

B. Rh antigen is observed on RBCs in the majority of human beings.

C. Before blood transfusion, Rh group should also be matched.

D. Rh incompatibility is observed when a pregnant mother is \(Rh^{-ve}\) and the foetus is \(Rh^{+ve}\).

E. Erythroblastosis foetalis can be avoided by administering anti-Rh antibodies to the mother immediately after the delivery of the second child.

Choose the answer from the options given below:
\medskip

  • (A) B and C only
  • (B) A and B only
  • (C) A and E only
  • (D) C and D only

Question 176:

Select the set of fishes which belong to the class Osteichthyes :
\medskip

  • (A) Saw fish, Fighting fish and Dog fish
  • (B) Devil fish, Cuttlefish and Hagfish
  • (C) Flying fish, Angel fish and Fighting fish
  • (D) Starfish, Hagfish and Cuttlefish

Question 177:

In a population of a grasshopper species, the chromosome number of some members is 23 and some other members possess 24 chromosomes. The 23 and 24 chromosome-bearing members in this species are ________
\medskip

  • (A) females and males, respectively
  • (B) all males
  • (C) males and females, respectively
  • (D) all females

Question 178:

Evolution of human appears parallel to the progressive development of brain and language skills. As such, the evolution of individual species in the sequence of their appearance is :
\medskip

  • (A) Ramapithecus \(\longrightarrow\) Homo habilis \(\longrightarrow\) Homo erectus \(\longrightarrow\) Neanderthal \(\longrightarrow\) Homo sapiens
  • (B) Homo habilis \(\longrightarrow\) Homo erectus \(\longrightarrow\) Ramapithecus \(\longrightarrow\) Neanderthal \(\longrightarrow\) Homo sapiens
  • (C) Homo sapiens \(\longrightarrow\) Ramapithecus \(\longrightarrow\) Homo habilis \(\longrightarrow\) Neanderthal \(\longrightarrow\) Homo erectus
  • (D) Neanderthal \(\longrightarrow\) Ramapithecus \(\longrightarrow\) Homo habilis \(\longrightarrow\) Homo erectus \(\longrightarrow\) Homo sapiens

Question 179:

The specific receptors for neurotransmitters in a synapse are present on ________.
\medskip

  • (A) Post-synaptic membrane
  • (B) Pre-synaptic membrane
  • (C) Myelin sheath
  • (D) Schwann cell

Question 180:

Match List I with List II



Choose the correct answer from the options given below :
\medskip

  • (A) A-I, B-II, C-III, D-IV
  • (B) A-III, B-IV, C-I, D-II
  • (C) A-III, B-I, C-IV, D-II
  • (D) A-I, B-III, C-II, D-IV
NEET 2026 Question Paper with solution pdf code 13

NEET 2026 Marking Scheme

Category Detail
Marking Scheme
Correct answer +4 marks
Incorrect answer −1 mark
Unattempted question 0 marks
Subject-wise distribution
Physics 45 questions · 180 marks
Chemistry 45 questions · 180 marks
Biology — Botany 45 questions · 180 marks
Biology — Zoology 45 questions · 180 marks
Total 180 questions · 720 marks

NEET 2026 Most Important Questions

*The article might have information for the previous academic years, please refer the official website of the exam.

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