MolSynapsequestion bank
MolSynapse / Question bank / Amines and Aromatic Nitrogen Compounds / Diazonium salts: preparation and synthetic uses
JEE Advanced levelOne or more correct optionsDifficulty 3 of 3nc144

On treatment with / dil. at 273-278 K, which of the following give an arenediazonium salt that can be used for coupling?

  1. A4-methylaniline
  2. BN-methylaniline
  3. C
  4. D4-nitroaniline

Answer: A, D

Only primary aromatic amines give stable arenediazonium salts at 273-278 K. N-Methylaniline is a secondary amine and gives the N-nitrosoamine (yellow oil). Ethylamine is a primary aliphatic amine and gives an unstable diazonium ion that forms ethanol and N2.
Practice Amines and Aromatic Nitrogen Compounds More on Diazonium salts: preparation and synthetic uses
Previous questionNext question

More questions on Diazonium salts: preparation and synthetic uses