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JEE Main 202131 AugustEvening Shift
Exam
JEE Main
Year
2021
Date
31 August
Shift
Evening Shift
Subject
Chemistry
Chapter
Aldehydes and Ketones

JEE Main 2021 · 31 August · Evening Shift · Chemistry · Aldehydes and Ketones

The structures of A and B formed in the following reaction are :...

The structures of AandBA and B formed in the following reaction are : \left[Ph = - {C}_{6}{H}_{5}\right]$
The structures of A and B formed in the following reaction are : [Ph = - C _ 6 H _ 5 ]

Options

  1. AThe number of incorrect statement/s from the following is/are A. Water vapours are adsorbed by anhydrous calcium
  2. BThe number of incorrect statement/s from the following is/are A. Water vapours are adsorbed by anhydrous calcium
  3. CThe number of incorrect statement/s from the following is/are A. Water vapours are adsorbed by anhydrous calcium
  4. DThe number of incorrect statement/s from the following is/are A. Water vapours are adsorbed by anhydrous calcium

Correct answer

A. The number of incorrect statement/s from the following is/are A. Water vapours are adsorbed by anhydrous calcium

Step-by-step solution

Friedel-Craft acylation reaction in benzene takes place. Aluminium chloride is Lewis acid which helps in generating electrophile as shown in first step of reaction.

This electrophile get substituted in benzene and product (A) is obtained. In next step, Clemmensen's reduction occur which converts aldehyde or ketone into hydrocarbon.

The structures of A and B formed in the following reaction are : [Ph = - C _ 6 H _ 5 ]

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