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AIIMS 201925 May
Exam
AIIMS
Year
2019
Date
25 May
Subject
Chemistry
Chapter
Carboxylic Acid Derivatives

AIIMS 2019 · 25 May · Chemistry · Carboxylic Acid Derivatives

Assertion : CH_3 COOH but not HCOOH can be halogenated in presence...

Assertion : CH3COOH\mathrm{CH}_3 \mathrm{COOH} but not HCOOH\mathrm{HCOOH} can be halogenated in presence of red P\mathrm{P} and Cl2\mathrm{Cl}_2. Reason : Both formic acid and CH3COOH\mathrm{CH}_3 \mathrm{COOH} are highly soluble in water.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

B. If both assertion and reason are true but reason is not the correct explanation of assertion.

Step-by-step solution

The Hell-Volhard-Zelinsky(HVZ) reaction shows halogen substitution at α\alpha-carbon atom. HCOOH\mathrm{HCOOH} has no α\alpha-carbon atom and thus does not undergo HVZ reaction.
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