Heating phthalic anhydride and concentrated sulfuric acid with which of the following yields phenolphthalein?

Benzoylation of phenol with benzoyl chloride in the presence of dilute $NaOH$ gives phenyl benzoate. This reaction is an example of

Give the conversion of phenol to salicylic acid.

When benzene sulfonic acid and $p-$nitrophenol are treated with $NaHCO_3$,the gases released respectively are

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

Identify the major products $A$ and $B$ for the reaction sequence given below.