Which of the following compounds will not undergo an azo coupling reaction with benzene diazonium chloride?

In the following reaction,the major product $(P)$ formed is

Consider the following compounds:
$I. CH_3-CH_2-NH_2$
$II. Ph-CH_2-NH_2$
$III. Ph-NH_2$
The correct order of their basic strength is:

For the transformation shown below,the reagent used is:
$3-bromobenzenediazonium \ chloride \rightarrow \text{bromobenzene}$

$RNH_2$ reacts with $C_6H_5SO_2Cl$ (Hinsberg reagent) in aqueous $KOH$ to give a clear solution. On acidification,a precipitate is obtained which is due to the formation of:

Find the correct order of acidity of the following compounds:
$(I)$ $C_6H_5NH_2$
$(II)$ $C_6H_5CONH_2$
$(III)$ Phthalimide
$(IV)$ $CH_3CH_2NH_2$