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JEE Main · 2024 · 05 Apr 2024 · Shift 1 · Hydrocarbons

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Given below are two statements :

Statement I: Nitration of benzene involves the following step -

Statement II: Use of Lewis base promotes the electrophilic substitution of benzene.

In the light of the above statements, choose the most appropriate answer from the options given below :
  1. (A)Both Statement I and Statement II are incorrect
  2. (B)Statement I is correct but Statement II is incorrect✓ Correct
  3. (C)Both Statement I and Statement II are correct
  4. (D)Statement I is incorrect but Statement II is correct

Answer: (B)

Solution

Statement I is correct: nitration of benzene proceeds via protonation and loss of water from nitric acid to generate the nitronium ion , . Statement II is incorrect: it is a Lewis acid (not a Lewis base) that promotes electrophilic substitution by generating/stabilising the electrophile. Hence I correct, II incorrect.

JEE Main · 2024 · 05 Apr 2024 · Shift 1 · Single correct option

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