What is the product obtained in the following reaction?

The increasing order of $pK_b$ for the following compounds will be:
$(A)$ $NH_2-CH=NH$
$(B)$ $1,5,7-Triazabicyclo[4.4.0]dec-5-ene$
$(C)$ $(CH_3)_2NH$

In the chemical reactions,the compounds $A$ and $B$ respectively are

How will you carry out the following conversions?
$(i)$ Toluene $\to$ $p$-toluidine
$(ii)$ $p$-Toluidine diazonium chloride $\to$ $p$-toluic acid

Which of the following reactions does $NOT$ involve the replacement of the diazonium group?

Given below are two statements:
Statement $I$: Heating benzamide with bromine in an ethanolic solution of sodium hydroxide will give benzylamine.
Statement $II$: Nitration of aniline with $HNO_3/H_2SO_4$ at $288 \ K$ produces $m$-nitroaniline in higher amount than $o$-nitroaniline (pH adjusted).