When ethyl alcohol $C_2H_5OH$ is mixed with ammonia and passed over heated alumina,the compound formed is

Which one of the following compounds gives a secondary amine on reduction?

In the Gabriel phthalimide synthesis,phthalimide is treated first with

$CH_3-COOH$ $\xrightarrow{NH_3} X$ $\xrightarrow{\Delta} Y$ $\xrightarrow{LiAlH_4} Z$; $Z$ is:

Which one of the following reducing agents is likely to be the most effective in bringing about the following change? $RCONH_2 \to RCH_2NH_2$

Consider the following set of reactions. What are $A$ and $B$ respectively?
$Y \xleftarrow{B} C_6H_5CN \xrightarrow{A} X$
($Y$ reacts with $2,4-DNP$)
($X$ dissolves in dil. $HCl$)