CUET · CHEMISTRY · PYQ PAPER 2023

Match List - I with List - II.
List - I List - II
(A) Oxidation of primary alcohol to Aldehyde (I) Concentrated sulphuric acid
(B) Oxidations of primary alcohol to carboxylic acid (II) Zn. dust
(C) Dehydration of propanol to propene (III) \(CrO _3\) in anhydrous medium
(D) Phenol to benzene (IV) Acidified potassium permanganate
Choose the correct answer from the options given below :

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

Verified Solution

Answer & Solution

Correct Answer

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

Step-by-step Solution

Detailed explanation

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

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Match List - I with List - II

List - I (Cell Type)	List - II (Characteristic/Reaction)
A. Fuel Cell	I. Rechargeable
B. Mercury Cell	II. Reaction at anode, \(\text{Zn} \rightarrow \text{Zn}^{2+} + 2\text{e}^{-}\)
C. Leclanche Cell	III. Cell reaction \(2\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O}\)
D. Ni-Cd Cell	IV. Gives steady potential

Choose the correct answer from the options given below :

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Match List I with List II

List-I	List-II
A. Benzophenone \(\rightarrow\) Diphenylmethane	I. \(\text{LiAlH}_4\)
B. Benzaldehyde \(\rightarrow\) 1-phenylethanol	II. DIBAL-H
C. Cyclohexanone \(\rightarrow\) Cyclohexanol	III. \(\text{NH}_2\text{NH}_2\text{, KOH}\)
D. Methylbenzoate \(\rightarrow\) Benzaldehyde	IV. \(\text{CH}_3\text{MgBr, H}_2\text{O}\)

" Choose the correct answer from the options given below:

CUET 2023 Medium

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Match List-I With List-II

LIST – I (Transition metal ion)	LIST – II (Property)
(A) \(Mn ^{3+}\)	(I) \(3 d^6\), green
(B) \(Fe ^{2+}\)	(II) \(3 d^4\), violet
(C) \(Ti ^{4+}\)	(III) \(3 d^0\), colourless
(D) \(V ^{2+}\)	(IV) \(3 d^3\), violet

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CUET 2025 Easy

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List-l (Producer)	List-II (Acid)
(A) Clostridium butylicum	(I) Lactic acid
(B) Aspergillus niger	(II) Butyric acid
(C) Acetobacter aceti	(III) Citric acid
(D) Lactobacillus	(IV) Acetic acid

List - I	List - II
(A) Oxidation of primary alcohol to Aldehyde	(I) Concentrated sulphuric acid
(B) Oxidations of primary alcohol to carboxylic acid	(II) Zn. dust
(C) Dehydration of propanol to propene	(III) \(CrO _3\) in anhydrous medium
(D) Phenol to benzene	(IV) Acidified potassium permanganate