What are the structures of $X$,$Y$,and $Z$ in the above given reaction sequence?

How many of the transformations given below would result in aromatic amines?

Which of the following amines will not give $N_2$ gas on treatment with nitrous acid $(NaNO_2 + HCl)$?

Which of the following compounds does not produce an amine upon hydrolysis?

Amongst the compounds given,the one that would form a brilliant colored dye on treatment with $NaNO_2$ in dil. $HCl$ followed by addition to an alkaline solution of $\beta$-naphthol is

Given below are two statements:
Statement $I$: $o$-Phenylenediamine can be synthesized from $o$-xylene using simpler reagents in the order: $i)$ Acidic $KMnO_4$, $ii)$ Ammonia, $iii)$ Bromine and alkali.
Statement $II$: Aniline can be converted into benzene using reagents in the order: $(i)$ Bromine-$H_2O$, $(ii)$ $NaNO_2 / HCl$ $(0-5^{\circ} C)$, $(iii)$ aq. $H_3PO_2$.
In the light of the above statements, choose the correct answer from the options given below.