The product of the reaction $image \xrightarrow[{HCl}]{{NaNO_2}} (A)$ is:

The increasing order of diazotisation of the following compounds is:

Complete reduction of $benzene-diazonium$ chloride with $Zn/HCl$ gives:

Predict the major product of the following reaction:

Arrange the following compounds in decreasing order of basic strength:
$(i)$ Aniline
(ii) $p$-Nitroaniline
(iii) $p$-Cyanoaniline
(iv) $p$-Toluidine

The compound that forms a yellow oily liquid with nitrous acid is