Nitration of benzoic acid gives

$CH_3-CH_2-COOH$ $\xrightarrow{Cl_2/Fe} X$ $\xrightarrow{\text{Alcoholic } KOH} Y$. Compound $Y$ is:

Identify the product of the following reaction:

Identify $B$ in the following sequence of reactions.
Acetic acid $\xrightarrow[\Delta]{\text{Thionyl chloride}} A$ $\xrightarrow{\text{Ammonia}} B$

What is the order of reactivity of the following compounds towards sodalime decarboxylation?
$(i)$ $m$-nitro-phenylacetic acid
(ii) $p$-nitro-phenylacetic acid
(iii) $p$-methoxy-phenylacetic acid
(iv) $p$-methyl-phenylacetic acid

On heating acetamide in the presence of $P_2O_5$,which of the following is formed?