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JEE Main2015ChemistryAldehydes and KetonesActual

In the following sequence of reactions: Toluene → KMnO 4 A → SOCl 2 B → BaSO 4 H 2 / Pd C The Product C is:

Options

  1. AC 6 H 5 C H O
  2. BC 6 H 5 C O O H
  3. CC 6 H 5 C H 3
  4. DC 6 H 5 C H 2 O H

Correct answer

A. C 6 H 5 C H O

Step-by-step solution

Treatment of an alkylbenzene with potassium permanganate results in oxidation to give benzoic acid. The position directly adjacent to an aromatic group is called the “benzylic” position. The reaction only works if there is a hydrogen attached to the carbon. Hence, toluene, on oxidation with potassium permanganate, gives benzoic acid ( A ) . Carboxylic acids reacts with thionyl chloride to form acid chlorides. Hence, benzoic acid, on reaction with thionyl chloride ( SOCl 2 ) , gives benzoyl chloride ( B

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