Liebermann's test is answered by

The major product of the following reaction sequence is:
Aniline $\xrightarrow[(i) NaNO_2, HCl, 273-278K]{(ii) H_2O, warm} \text{Product}$ $\xrightarrow[(iv) NaOH]{(iii) Br_2, (excess)} \text{Product}$ $\xrightarrow{(v) CH_3I} \text{Final Product}$

Which of the following compounds has the least $pK_a$ value?

For the given reaction,identify the major products $A$ and $B$ respectively.

Which of the following will not be soluble in sodium hydrogen carbonate?

The correct order of boiling point for the given compounds is: