The reaction of ethylamine and acetic anhydride leads to the formation of:

If $279 \ g$ of aniline is reacted with one equivalent of benzenediazonium chloride,the maximum amount of aniline yellow formed will be $.........$ $g$. (nearest integer)
(consider complete conversion)

Which among the following reactions represents the Carbylamine reaction?

Identify compound $X$ in the following reaction.

The major product formed in the following reaction is:

In the reaction sequence $CH_3Cl$ $\xrightarrow{KCN}$ $\xrightarrow{+4H} A$ $\xrightarrow{NaNO_2/HCl} \text{Ethyl alcohol} + ?$. What are the major and minor products formed?