JEE Main · 2024 · Shift-IIeasyHC-033

Consider the given chemical reaction: Product "A" is:

Hydrocarbons · Class 11 · JEE Main Previous Year Question

Question

Consider the given chemical reaction: Product "A" is: image

Options
  1. a

    Picric acid

  2. b

    Oxalic acid

  3. c

    Acetic acid

  4. d

    Adipic acid

Correct Answerd

Adipic acid

Detailed Solution

Step 1: Identify the starting material and reagent

The reaction involves cyclohexene (or cyclohexane with a double bond) treated with a strong oxidizing agent like \ceKMnO4/H+\ce{KMnO4/H^+} at elevated temperature.

The ring opens at the double bond, and both ends are oxidized to carboxylic acids:

image Adipc acid is a 6-carbon dicarboxylic acid, an important industrial chemical used in nylon synthesis.

Answer: Option (d) — Adipic acid

Key Points to Remember:

  • Oxidative cleavage of cyclic alkenes gives dicarboxylic acids
  • Cyclohexene → adipic acid (\ceC6\ce{C6} dicarboxylic acid)
  • Cyclopentene → glutaric acid (\ceC5\ce{C5} dicarboxylic acid)
  • Adipic acid + hexamethylenediamine → Nylon-6,6

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