Question:

The final product formed when Methyl amine is treated with \(\mathrm{NaNO_2}\) and HCl is :

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Aliphatic primary amines give unstable diazonium salts that react with water to give alcohols.
Updated On: Nov 11, 2026
  • Diazomethane
  • Methylalcohol
  • Methylcyanide
  • Nitromethane
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The Correct Option is B

Solution and Explanation

\(\mathrm{NaNO_2 + HCl \rightarrow HNO_2}\). With a primary aliphatic amine: \(\mathrm{CH_3NH_2 + HNO_2 \rightarrow [CH_3N_2^+Cl^-] \rightarrow CH_3OH + N_2 + HCl}\).
The aliphatic diazonium salt is unstable and is hydrolysed immediately; the product is methyl alcohol.
Answer: (2) Methylalcohol
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