JEE Main 202116 MarchEvening Shift

Exam: JEE Main
Year: 2021
Date: 16 March
Shift: Evening Shift
Subject: Chemistry
Chapter: Carboxylic Acid Derivatives

JEE Main 2021 · 16 March · Evening Shift · Chemistry · Carboxylic Acid Derivatives

In the above reaction, the reagent " A " is :

In the above reaction, the reagent " $A$ " is :

Options

A ${NaBH}_{4}, {H}_{3}{O}^{+}$
B ${LiAlH}_{4}$
CAlkaline ${KMnO}_{4}, {H}^{+}$
D $HCl, Zn - Hg$

Correct answer

C. Alkaline ${KMnO}_{4}, {H}^{+}$

Step-by-step solution

${KMnO}_{4}$ in presence of acidic medium shows oxidation reaction.

It converts carbon into acid if carbon is connected to benzene group directly and having at least one hydrogen with it then it can be converted into acid otherwise not. As shown below:

In the above reaction, the reagent " A " is :

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