1.

Identify the reagent ‘X’ in the following reaction.(a) HNO3(b) NaNO2 and HCl(c) NaCl and HNO3(d) NaNO2 and H2SO4This question was posed to me in an internship interview.This interesting question is from Preparation Method of Diazonium Salts topic in division Amines of Chemistry – Class 12

Answer»

The correct choice is (b) NANO2 and HCl

Best explanation: ANILINE actually REACTS with HNO2 (NITROUS acid) at 273K to form Benzenediazonium chloride. But this nitrous acid in produced in situ, by a mixture of NaNO2 and HCl.



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