Predict the major product of the following reaction:

What is obtained when aniline hydrogen sulfate is heated with sulfuric acid at $453 - 473 \, K$?

Which of the following amines does $NOT$ form an alkyl isocyanide when heated with alcoholic $KOH$ and chloroform $(CHCl_3)$?

Aniline on treatment with excess of bromine water gives

Which of the following will not give Hoffmann bromamide reaction?

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A)$: Experimental reaction of $CH_{3}Cl$ with aniline and anhydrous $AlCl_{3}$ does not give $o-$ and $p-$methylaniline.
Reason $(R)$: The $-NH_{2}$ group of aniline becomes deactivating because of salt formation with anhydrous $AlCl_{3}$ and hence yields $m-$methylaniline as the product.
In the light of the above statements,choose the most appropriate answer from the options given below.