Identify the correct statement:

• (A) Molecularity of a reaction is an experimental quantity.
• (B) For complex reactions molecularity has no meaning.
• (C) Molecularity of a reaction can be zero or even a fraction.
• (D) Molecularity more than three is very common in chemical reactions.

Consider the following reaction:
\(Zn_{(s)} + Ag_2O_{(s)} + H_2O_{(l)} \rightarrow Zn^{2+}_{(aq)} + 2Ag_{(s)} + 2OH^-_{(aq)}\)

Given: \(E^\circ_{Ag^+/Ag} = 0.80 V\), \(E^\circ_{Zn^{2+}/Zn} = -0.76 V\), \(1 F = 96500 C mol^{-1}\)
\(\Delta_rG^\circ\) for the above reaction is:

• (A) \(-301.080 kJ mol^{-1}\)
• (B) \(+310.080 kJ mol^{-1}\)
• (C) \(-326.070 kJ mol^{-1}\)
• (D) \(-375.060 kJ mol^{-1}\)

Electronic configuration of chromium is:

• (A) \([Ar] 3d^4 4s^1\)
• (B) \([Ar] 3d^4 4s^2\)
• (C) \([Ar] 3d^5 4s^1\)
• (D) \([Ar] 3d^5 4s^2\)

The order for the given reaction is:
\(A + 2B \rightarrow Products\)

Rate = \(k[A]^{1/2}[B]^1\)

• (A) \(1.5\)
• (B) \(1\)
• (C) \(0.5\)
• (D) \(2\)

Which of the following is heteroleptic complex?

• (A) \([Co(NH_3)_6]^{3+}\)
• (B) \([Cr(NH_3)_6]^{3+}\)
• (C) \([Ni(H_2O)_6]^{2+}\)
• (D) \([Co(NH_3)_4Cl_2]^+\)

The correct IUPAC name of the complex \([Pt(NH_3)_2Cl_2]\) is :

• (A) diamminedichloridoplatinum (IV)
• (B) diamminedichloridoplatinum (II)
• (C) dichloridodiammineplatinum (IV)
• (D) dichloridodiammineplatinum (II)

Identify the correct increasing order of boiling points of the given compounds :

• (A) Propan-1-ol \(<\) butan-1-ol \(<\) butan-2-ol \(<\) pentan-1-ol
• (B) Pentan-1-ol \(<\) butan-1-ol \(<\) butan-2-ol \(<\) Propan-1-ol
• (C) Propan-1-ol \(<\) butan-2-ol \(<\) butan-1-ol \(<\) pentan-1-ol
• (D) Butan-1-ol \(<\) Butan-2-ol \(<\) Propan-1-ol \(<\) Pentan-1-ol

Which of the following molecules is chiral in nature ?

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

The base which is present in DNA but not in RNA is :

• (A) Guanine
• (B) Cytosine
• (C) Thymine
• (D) Adenine

Identify the compound produced by the reduction of Ethanenitrile with Lithium aluminium hydride :

• (A) Ethylamine
• (B) Ethanal
• (C) Propylamine
• (D) Methylamine

Which of the following reactions is not explained by the open chain structure of glucose ?

• (A) Glucose on prolonged heating with HI forms n-hexane.
• (B) Glucose reacts with hydroxylamine to form an oxime.
• (C) Glucose gets oxidized to gluconic acid on reaction with bromine water.
• (D) Glucose exists in two different crystalline forms, alpha (\(\alpha\)) and beta (\(\beta\)).

Proteins are polymers of \(\alpha\)-amino acids which are joined to each other by :

• (A) Covalent Bond
• (B) Peptide Bond
• (C) Glycosidic Bond
• (D) Coordinate Bond

Assertion (A) : Zinc, cadmium and mercury are not considered as transition elements.

Reason (R) : These elements have completely filled orbitals in their ground state as well as in their common oxidation states.

Assertion (A) : The molecularity of the given reaction is 2
\[ 2HI \rightarrow H_2 + I_2 \]

Reason (R) : Two molecules of the reactants are involved in simultaneous collision between them.

Assertion (A): Glucose gets oxidized to six carbon gluconic acid on reaction with bromine water.

Reason (R): The carbonyl group is absent in the open chain structure of glucose.

• (A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
• (B) Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
• (C) Assertion (A) is true but Reason (R) is false.
• (D) Assertion (A) is false but Reason (R) is true.

Assertion (A): Aromatic primary amines can be prepared by Gabriel Phthalimide synthesis.

Reason (R): Aryl halides do not undergo nucleophilic substitution with the anion formed by phthalimide.

• (A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
• (B) Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
• (C) Assertion (A) is true but Reason (R) is false.
• (D) Assertion (A) is false but Reason (R) is true.

Define coordination number.

Indicate the type of isomerism exhibited by the following complex: \([Co(en)_3]Cl_3\)

Define Effective collision.

Write the unit of (i) second order reaction and (ii) zero order reaction.

Why second ionization enthalpies of chromium and copper are exceptionally higher than those of their neighbouring elements?

Why transition elements form interstitial compounds?

The concentration of the reactant is reduced from \(0.6 mol L^{-1}\) to \(0.2 mol L^{-1}\) in 5 minutes in a first order reaction. Calculate rate constant of the reaction. (\(\log 3 = 0.48\))

Rate constant \(k\) for the first order reaction is \(2.54 \times 10^{-3} s^{-1}\). Calculate the time required for three-fourth of the reactant to decompose. (\(\log 4 = 0.60\))