COMEDK · Chemistry · 29. Amines
Choose the correct statement from the options given
- A Benzene diazonium chloride when reacted with Aniline in presence of dil. HCl at 273 K yields \(\mathrm{C}_6 \mathrm{H} 5-\mathrm{N}=\mathrm{N}-\mathrm{NH}-\mathrm{C}_6 \mathrm{H}_5\)
- B On heating an aliphatic primary amine with \(\mathrm{CHCl}_3\) in presence of Ethanolic KOH, a Nitrile is formed
- C The intermolecular bonding in primary amines is stronger than in secondary amines.
- D The decreasing order of basic nature of the following amines is: Methylamine \(>\) Dimethylamine \(>\) Trimethylamine \(>\) Aniline.
Answer & Solution
Correct Answer
(C) The intermolecular bonding in primary amines is stronger than in secondary amines.
Step-by-step Solution
Detailed explanation
(1) Incorrect: Coupling of benzene diazonium chloride with aniline yields p-aminoazobenzene (\(H_2N-C_6H_4-N=N-C_6H_5\)), not the diazoaminobenzene structure shown. (2) Incorrect: Heating a primary amine with \(CHCl_3\) and ethanolic KOH (carbylamine test) yields an isocyanide…
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