A primary aliphatic amine on reaction with nitrous acid in cold 273   K and there after raising…

A primary aliphatic amine on reaction with nitrous acid in cold 273 K and there after raising temperature of reaction mixture to room temperature 298 K, gives a/an
  1. Alcohol
  2. nitrile
  3. diazonium salt
  4. secondary amine

Solution

A primary aliphatic amine on reaction with nitrous acid in cold gives a diazonium salt, but diazonium salt of aliphatic amines are not much stable, so, they dissociate on increasing temperature slightly and gives alcohol with water.

R-NH2273°CHNO2aqRN2+H2O283°CR-OH+N2

Asked in: JEE Main 2022 (28 Jun Shift 1)

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