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JEE Main 202226 JuneEvening Shift

Exam: JEE Main
Year: 2022
Date: 26 June
Shift: Evening Shift
Subject: Chemistry
Chapter: Carboxylic Acid Derivatives

JEE Main 2022 · 26 June · Evening Shift · Chemistry · Carboxylic Acid Derivatives

The reagent, from the following, which converts benzoic acid to...

The reagent, from the following, which converts benzoic acid to benzaldehyde in one step is

The reagent, from the following, which converts benzoic acid to benzaldehyde in one step is

Options

A ${LiAlH}_{4}$
B ${KMnO}_{4}$
C $MnO$
D ${NaBH}_{4}$

Correct answer

C. $MnO$

Step-by-step solution

When benzoic acid is heated with formic acid in presence of $Mno$ , benzaldehyde is obtained.

The reaction is given below, along with benzaldehyde, carbondioxide and water are also obtained.

${C}_{6}{H}_{5}COOH + HCOOH\mathop{\to}_{Heat}^{MnO}{C}_{6}{H}_{5}CHO + {CO}_{2} + {H}_{2}O$

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