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JEE Main 202125 FebruaryMorning Shift

Exam: JEE Main
Year: 2021
Date: 25 February
Shift: Morning Shift
Subject: Chemistry
Chapter: Carboxylic Acid Derivatives

JEE Main 2021 · 25 February · Morning Shift · Chemistry · Carboxylic Acid Derivatives

Which one of the following reactions will not form acetaldehyde?

Which one of the following reactions will not form acetaldehyde?

Which one of the following reactions will not form acetaldehyde?

Options

A ${CH}_{3}{CH}_{2}OH\overset{{CrO}_{3} - {H}_{2}{SO}_{4}}{⟶}$
B ${CH}_{2} = {CH}_{2} + {O}_{2}\dfrac{Pd\left(\text{ II }\right) /\text{ Cu }\left(II\right)}{{H}_{2}O}$
C ${CH}_{3}CN\dfrac{i ) DIBAL - H}{ii ) {H}_{2}O} >$
D ${CH}_{3}{CH}_{2}OH\dfrac{Cu}{573K} >$

Correct answer

A. ${CH}_{3}{CH}_{2}OH\overset{{CrO}_{3} - {H}_{2}{SO}_{4}}{⟶}$

Step-by-step solution

Ethyl alcohol on oxidation with acidified chromium oxide forms acetic acid. The reaction is as follows:

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