In the reaction: $\text{Primary Amine} + CHCl_3 + KOH \rightarrow \text{Product}$,what is the product?

What is the major product formed when $C_6H_5CH_2NH_2$ reacts with nitrous acid $(HNO_2)$?

Acetamide is

Identify the final product $Z$ in the following reaction sequence:
$Aniline$ $\xrightarrow{CH_3COCl} X$ $\xrightarrow{Br_2/AlBr_3} Y$ $\xrightarrow{H_3O^+} Z$

When $R-CO-NH_2$ is treated with $Br_2$ and $KOH$,it gives $R-NH_2$ as the major product. Which intermediate is involved in this reaction?

Aniline in a set of reactions yielded a product $D$. The structure of product $D$ would be:
Aniline $\xrightarrow{NaNO_2/HCl} A$ $\xrightarrow{CuCN} B$ $\xrightarrow{H_2/Ni} C$ $\xrightarrow{HNO_2} D$