Which of the following will not give a primary amine upon reduction with $LiAlH_4$?

Which of the following statements is true for Benzenediazonium fluoroborate?

Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.

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

Which of the following statements is true?
$1)$ Tertiary amines react with acid chlorides.
$2)$ $N$-ethylbenzene sulphonamide is soluble in alkali.
$3)$ $N,N$-diethylbenzene sulphonamide is soluble in alkali.
$4)$ Tertiary amines react with Hinsberg's reagent.

The correct order of basic strength for the given nitrogen atoms $(x)$,$(y)$,and $(z)$ is $-$