Which of the following cannot be formed from Sandmeyer reaction on benzenediazonium chloride?

Aliphatic diazonium salts are highly unstable.

Identify the incorrect name of the compound formed when two hydrogen atoms of ammonia are replaced by phenyl groups.

Alkyl fluorides and iodides cannot be formed from Sandmeyer reaction.

Identify Y in the following reaction.

Which of the following is associated with decrease in pKb value of amines?

The main product formed when the ammonolysis is carried out using excess of iodoethane is ___

Which of the following amines are insoluble in water?