What will be the product,when salicylic acid,obtained by the Reimer-Tiemann process,is reduced with $Zn$ dust?

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 will produce effervescence when mixed with an aqueous sodium bicarbonate $(NaHCO_3)$ solution?

Which of the following conversions represents the Fries rearrangement?

The major product of the following reaction is:

Identify $X$ and $Y$ in the following reaction:
$X \xrightarrow{Y} \text{Benzoquinone}$