Which of the following does not react with phenyl hydrazine?

Which one of the following reacts with 2,4-dinitro phenyl hydrazine?

How does benzaldehyde react with phenyl hydrazine ?

How does acetone react with hydrazine ?

How does acetaldehyde react with Phenyl hydrazine ?

Give balanced equations for the following reactions : Acetone reacts with phenyl hydrazine.

Which one of the following on treatment with 2,4-dinitro phenyl hydrazine?

Which of the following reactions are feasible for hydrazine?

which of the following does not give a precipitate with 2,4-dinitrophenyl hydrazine and does not react with metallic sodium. It could be

Which of the following compound reacts with chlorofom and a base of form phenyl isocyanide?