MHT CET 2022 Chemistry question
What is the product formed when aniline is treated with NaNO + HCl previous to hydrolysis?
Answer: (A)
Solution
Aniline reacts with nitrous acid (from NaNO + HCl) at 273-278 K by diazotisation: C_6H_5NH_2 + NaNO_2 + 2HCl \rightarrow C_6H_5N_2^+Cl^- + NaCl + 2H_2O. The product before hydrolysis is benzenediazonium
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