JEE Main 2019ChemistryCarboxylic Acid DerivativesMediumMCQ

JEE Main 2019 — Carboxylic Acid Derivatives Question with Solution

JEE Main 2019 (12 Jan Shift 2)

Question

The increasing order of the reactivity of the following with LiAlH4 is:

(A)

(B)

(C)

(D)

Choose an option

Show full solutionCorrect option: C
Correct answer
CA<B<D<C

Step-by-step explanation

In the mentioned structures H- will get added to the carbon having slight positive charge.

Presence of Cl increases the positive charge whereas an electron donating group like NH2 decreases the tendency.

Rate of reaction ∝ -M or -I group

Rate of reaction ∝ 1+M and 1+I

Hence, the correct order will be:

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About this question

This is a previous-year question from JEE Main 2019, covering the Carboxylic Acid Derivatives chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.