One mole of glucose molecules contains approximately:

• (A) \( 3.01 \times 10^{23} \) molecules
• (B) \( 6.02 \times 10^{23} \) molecules
• (C) \( 1.204 \times 10^{24} \) molecules
• (D) \( 9.03 \times 10^{23} \) molecules

Benzaldehyde on treatment with concentrated NaOH undergoes Cannizzaro reaction to form:

• (A) Benzyl alcohol and sodium benzoate
• (B) Benzoic acid and ethanol
• (C) Benzyl chloride and sodium benzoate
• (D) Benzene and sodium formate

At equilibrium for the reaction \( N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g) \), the concentrations are [N\(_2\)] = 0.20 M, [H\(_2\)] = 0.60 M and [NH\(_3\)] = 0.80 M. The value of K\(_p\) is:

• (A) 7.4
• (B) 14.8
• (C) 22.2
• (D) 44.4

A solution is prepared by dissolving 5.85 g of NaCl (Molar mass = 58.5 g mol⁻¹) in water to make 500 mL of solution. The molarity of the solution is:

• (A) 0.1 M
• (B) 0.2 M
• (C) 0.5 M
• (D) 1.0 M

According to Valence Bond Theory, the hybridization of the central metal ion in [Ni(CN)₄]²⁻ is:

• (A) sp³
• (B) dsp²
• (C) d²sp³
• (D) sp²

According to Molecular Orbital Theory, the bond order of O₂ is:

• (A) 1
• (B) 1.5
• (C) 2
• (D) 3

100 mL of 2 M HCl is diluted to 500 mL. The molarity of the diluted solution is:

• (A) 0.2 M
• (B) 0.4 M
• (C) 0.5 M
• (D) 1.0 M

The IUPAC name of CH₃CH(OH)CH₂CH₃ is:

• (A) Butan-1-ol
• (B) Butan-2-ol
• (C) Propan-2-ol
• (D) 2-Methylpropan-1-ol

The coordination number of cobalt in [Co(NH₃)₆]Cl₃ is:

• (A) 3
• (B) 4
• (C) 6
• (D) 8

Which reagent converts ethanol into bromoethane?

• (A) KMnO₄
• (B) PBr₃
• (C) NaOH
• (D) H₂SO₄

A diode is forward biased by 0.7 V. If the forward resistance is 10 Ω, the current through the diode is:

• (A) 0.007 A
• (B) 0.07 A
• (C) 0.7 A
• (D) 7 A

In Young’s double-slit experiment, the slit separation is 0.4 mm and the screen is 2 m away. If light of wavelength 600 nm is used, the fringe width is:

• (A) 2 mm
• (B) 3 mm
• (C) 4 mm
• (D) 5 mm

The entropy change when 400 J of heat is absorbed reversibly at 400 K is:

• (A) 0.5 J K⁻¹
• (B) 1 J K⁻¹
• (C) 2 J K⁻¹
• (D) 4 J K⁻¹

In Young’s double-slit experiment, the wavelength of light is doubled while all other parameters remain unchanged. The fringe width becomes:

• (A) Half of the original
• (B) Unchanged
• (C) Double the original
• (D) Four times the original

The resistance of a semiconductor decreases when its temperature increases because:

• (A) the number of free charge carriers increases
• (B) electron mass decreases
• (C) atomic spacing increases
• (D) mobility becomes zero

An electromagnetic wave has a frequency of 150 MHz. Its wavelength in air is approximately:

• (A) 0.5 m
• (B) 1 m
• (C) 2 m
• (D) 4 m

A radioactive substance has a half-life of 5 days. If its initial mass is 80 g, the mass remaining after 15 days is:

• (A) 40 g
• (B) 20 g
• (C) 10 g
• (D) 5 g

A coil of 100 turns experiences a change in magnetic flux from 0.05 Wb to 0.01 Wb in 0.2 s. The induced emf is:

• (A) 10 V
• (B) 15 V
• (C) 20 V
• (D) 25 V

A convex lens of refractive index 1.5 has radii of curvature +20 cm and −20 cm. The focal length of the lens is:

• (A) 10 cm
• (B) 20 cm
• (C) 40 cm
• (D) 80 cm

The measured length of a rod is (20.0 ± 0.2) cm. The percentage error in the measurement is:

• (A) 0.5%
• (B) 1%
• (C) 2%
• (D) 5%

Who among the following is the ex-officio Chairman of the Rajya Sabha?

• (A) Leader of Opposition
• (B) President of India
• (C) Vice-President of India
• (D) Senior Member of Rajya Sabha

The Strait of Hormuz is located between which countries?

• (A) Iran and Saudi Arabia
• (B) Iran and Oman, and the UAE
• (C) Oman and Saudi Arabia
• (D) Iraq and Iran

Chilika Lake, the largest salt water lake in India in the state of Odisha, lies to the south of the:

• (A) Baitarani delta
• (B) Brahmani delta
• (C) Budhabalanga delta
• (D) Mahanadi delta

Who was the Union Home Minister of India as of June 2025, following the general elections?

• (A) Nirmala Sitharaman
• (B) Rajnath Singh
• (C) Amit Shah
• (D) Piyush Goyal

Which Indian Ocean island country uses the "Rufiyaa" as its official currency for domestic and international transactions?

• (A) Sri Lanka
• (B) Maldives
• (C) Mauritius
• (D) Seychelles

Which condition is characterised by reduced clotting ability of blood?

• (A) Leukaemia
• (B) Haemophilia
• (C) Polycythemia
• (D) Atherosclerosis

Match the following:

• (A) (A) \(\rightarrow\) (iii); (B) \(\rightarrow\) (iv); (C) \(\rightarrow\) (i); (D) \(\rightarrow\) (ii)
• (B) (A) \(\rightarrow\) (ii); (B) \(\rightarrow\) (i); (C) \(\rightarrow\) (iv); (D) \(\rightarrow\) (iii)
• (C) (A) \(\rightarrow\) (iii); (B) \(\rightarrow\) (iv); (C) \(\rightarrow\) (i); (D) \(\rightarrow\) (ii)
• (D) (A) \(\rightarrow\) (i); (B) \(\rightarrow\) (ii); (C) \(\rightarrow\) (iii); (D) \(\rightarrow\) (iv)

Analysis of the species-area relationships indicate the value of Z to be in the range of:

• (A) 0.1 to 0.5
• (B) 0.5 - 1.1
• (C) 0.6 - 1.2
• (D) 1.2 - 2.0

A permanent cure for ADA deficiency could be through:

• (A) Bone marrow transplantation
• (B) Modified lymphocyte transfusion
• (C) Gene therapy at early embryonic stages
• (D) Enzyme replacement therapy

Filiform apparatus is found in:

• (A) Antipodal cell
• (B) Egg cell
• (C) Secondary nucleus
• (D) Synergids

Match the following:

• (A) A-3, B-4, C-1, D-2
• (B) A-2, B-3, C-4, D-1
• (C) A-4, B-1, C-2, D-3
• (D) A-1, B-2, C-3, D-4

Common in Darwin’s finches and Australian marsupials is:

• (A) They are all extinct.
• (B) They show adaptive radiation.
• (C) They have homologous organs.
• (D) They are all found in South America.

Which of the following belongs to the Solanaceae family?

• (A) Potato, Tomato, Brinjal
• (B) Wheat, Rice, Maize
• (C) Rose, Apple, Pear
• (D) Pea, Gram, Soybean

Which disease is caused by Plasmodium?

• (A) Dengue
• (B) Typhoid
• (C) Malaria
• (D) Filariasis

Which growth regulator promotes fruit ripening?

• (A) Auxin
• (B) Gibberellin
• (C) Cytokinin
• (D) Ethylene

Which hormone-based contraceptive prevents ovulation?

• (A) Copper-T
• (B) Condoms
• (C) Oral pills
• (D) Diaphragm

Below given are two statements:
Statement I: MTPs are considered relatively safe during the first trimester
Statement II: Government of India legalised MTP in 1971
In the light of above statements, choose the most appropriate answer from the options given below:

• (A) Both statement I and II are correct
• (B) Both statement I and II are incorrect
• (C) Statement I is correct and statement II is incorrect
• (D) Statement I is incorrect and statement II is correct

Which of the following hormones control(s) the menstrual cycle in human beings?

• (A) FSH
• (B) LH
• (C) FSH, LH, estrogen
• (D) Oxytocin

Which of the following is the correct sequence of taxonomic hierarchy?

• (A) Kingdom → Phylum → Class → Order → Family → Genus → Species
• (B) Species → Genus → Family → Order → Class → Phylum → Kingdom
• (C) Kingdom → Class → Phylum → Order → Family → Genus → Species
• (D) Phylum → Kingdom → Class → Order → Family → Genus → Species

Which statements correctly describe Mycoplasma?
1. They lack a cell wall.
2. They can survive without oxygen.
3. They are the smallest known free-living organisms.
4. Their cell membrane contains sterols.

• (A) 1, 3, 4
• (B) 2 and 4
• (C) 1, 2, 3
• (D) 1, 2, 3, 4