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Chemistry · PYQ NEET UG 2026

हिन्दी

For the following reaction sequence, choose the correct option \( \text{Benzene} \xrightarrow[\text{ii. } \text{NaOCl}]{\text{i. } \text{CH}_3\text{COCl}, \text{ AlCl}_3} \text{P} + \text{Q} \)

  1. If \( \mathbf{P} \) is the sodium salt of a carboxylic acid, \( \mathbf{Q} \) is a primary alcohol.
  2. \( \mathbf{P} \) and \( \mathbf{Q} \) are aromatic compounds.
  3. If \( \mathbf{P} \) gives a carboxylic acid on acidification, \( \mathbf{Q} \) gives a poisonous gas on exposure to air and light.
  4. Both \( \mathbf{P} \) and \( \mathbf{Q} \) are carbonyl compounds.

Correct answer · Option 3

If \( \mathbf{P} \) gives a carboxylic acid on acidification, \( \mathbf{Q} \) gives a poisonous gas on exposure to air and light.

Explanation

Acetylation of benzene yields acetophenone (P), which upon haloform reaction with NaOCl gives sodium benzoate. Acidification yields benzoic acid. Q is chloroform (CHCl3), which forms phosgene gas upon exposure to air and light.
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