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ChemistryNEET 2024Preparation and reactions; diazonium salts

Amines

Given below are two statements:

Statement I: Aniline does not undergo Friedel–Crafts alkylation reaction.

Statement II: Aniline cannot be prepared through Gabriel synthesis.

In the light of the above statements, choose the correct answer from the options given below:

  1. A.Both Statement I and Statement II are false
  2. B.Statement I is correct but Statement II is false
  3. C.Statement I is incorrect but Statement II is true
  4. D.Both Statement I and Statement II are true✓

Solution

Aniline forms a complex with the Lewis-acid catalyst through its nitrogen lone pair, so Friedel–Crafts fails. Gabriel synthesis needs an alkyl halide to undergo with phthalimide; aryl halides do not, so aniline cannot be made this way. Both true.

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