CUET · CHEMISTRY · PYQ PAPER 2025

Which of the following amine will not undergo acylation reaction?

A Methylamine
B Ethylamine
C N,N-Diethyl aniline
D N-Methylmethanamine

Verified Solution

Answer & Solution

Correct Answer

(C) N,N-Diethyl aniline

Step-by-step Solution

Detailed explanation

N,N-Diethyl aniline is a tertiary amine and lacks a hydrogen atom attached to the nitrogen, thus it will not undergo acylation.

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.

Same subject

Which of the following reactions are given by Phenols?
(A) Nitration
(B) Halogenation
(C) Oxidation
(D) Acetylation
Choose the correct answer from the options given above:

CUET 2023 Medium

Match List I with List II.

List-I	List-II
A. aq \(N a C l\) solution with \(P t\) electrodes	I.oxygen gas evolution at the anode
B. Dilute solution of \(H _2 SO _4\) with Pt electrode	II. Metal loss at anode.
C. aq \(CuCl _2\) with Pt electrode	III. Hydrogen gas evolved at cathode
D. aq \(CuCl _2\) with Cu electrode	IV. Metal deposited at cathode.

Choose the correct answer from the options given below:

CUET 2023 Hard

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