Aldehydes and ketones give addition reaction with

Question

Aldehydes and ketones give addition reaction with (A) hydrazine (B) phenyl hydrazine (C) semicarbazide (D) hydrogen cyanide

Tardigrade Admin · Accepted Answer

With hydrogen cyanide, carbonyl compounds give nucleophilic addition reaction while with hydrazine, phenyl hydrazine and semicarbazide, they give addition-elimination reaction. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/31cb65e3a9e5b2337a42dd0a8de07013-.png" />

Q. Aldehydes and ketones give addition reaction with

hydrazine

phenyl hydrazine

semicarbazide

hydrogen cyanide

With hydrogen cyanide, carbonyl compounds give nucleophilic addition reaction while with hydrazine, phenyl hydrazine and semicarbazide, they give addition-elimination reaction.