Among the following,which one does not act as an intermediate in the Hofmann rearrangement?

In the following sequence of reaction,identify the major product $B$.

Which of the following compounds reacts with acetone to form a product containing the $>C = N -$ group?

Electrolytic reduction of nitrobenzene in weakly acidic medium gives

Assertion $(A)$: $-NH_2$ group of aniline is ortho,para directing in electrophilic substitutions.
Reason $(R)$: $-NH_2$ group stabilises the arenium ion formed by the ortho,para attack of the electrophile.
The correct answer is

Identify the major product formed from the following reaction sequence.