In the reaction $CH_3CONH_2 \xrightarrow{Na/ROH} Z + H_2O$,what is $Z$?

In an acidic medium,nitrobenzene is reduced to aniline as shown in the following reaction: $C_6H_5-NO_2 + 6[H] \rightarrow C_6H_5-NH_2 + 2H_2O$. Which of the following is used as the reducing agent in this reaction?

The correct sequence of reactions to be performed to convert benzene into $m$-bromoaniline is

In acid medium,nitrobenzene is reduced to aniline as shown in the reaction:
$C_6H_5-NO_2 + 6[H] \to C_6H_5-NH_2 + 2H_2O$
The reducing agent used in this reaction is $......$.

Consider the following sequence of reactions:
$PhCOOH$ $\xrightarrow[2. NH_3]{1. PCl_5} A$ $\xrightarrow[2. H_2/Ni]{1. P_4O_{10}, \text{heat}} B.$
The final product $(B)$ is:

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