Picric acid is (at $25\,^{\circ}C$)

$Phenol$ $\xrightarrow[Distillation]{Zn} A$ $\xrightarrow[Conc. H_2SO_4]{Conc. HNO_3} B$ $\xrightarrow[NaOH]{Zn} C$
In the above reaction,$A$,$B$,and $C$ are the following compounds:

Phenol is less acidic than

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 is the most acidic?

An aromatic compound $X$ when heated with $Zn$ powder gives benzoic acid,but when heated with soda lime,it gives phenol. Identify the compound $X$.