Which one of the following amides will not undergo the Hoffmann bromamide reaction?

What are $X$ and $Y$ in the following reactions?

What is formed when benzylamine reacts with nitrous acid?

Given below are two statements :
Statement $I$: Aniline reacts with conc. $H_2SO_4$ followed by heating at $453-473 \ K$ to give $p$-aminobenzene sulphonic acid (sulphanilic acid). This compound contains both nitrogen and sulphur,and thus it gives a blood red colour in the 'Lassaigne's test' due to the formation of ferric thiocyanate,$[Fe(SCN)]^{2+}$.
Statement $II$: In Friedel-Craft's alkylation and acylation reactions,aniline forms a salt with the $AlCl_3$ catalyst. Due to this,the nitrogen atom of aniline acquires a positive charge and acts as a deactivating group,preventing further reaction.
In the light of the above statements,choose the correct answer from the options given below :

Explain the bromination of aniline by an electrophilic substitution reaction.

What is the correct order of basicity for the following compounds?
$(1)$ $NH_3$
$(2)$ $CH_3CH_2NH_2$
$(3)$ $(CH_3)_2NH$
$(4)$ $CH_3CONH_2$