What is the product obtained when vapours of phenol are passed over heated zinc dust?

What will be the product of the reaction shown below?

When phenol reacts with dilute nitric acid at room temperature,the major product obtained is

Phenolphthalein is obtained by heating phthalic anhydride with conc. $H_2SO_4$ and

Which of the following reactions is used to obtain salicylic acid from phenol?

The correct statement$(s)$ about the following reaction sequence is(are):
Cumene $(C_9H_{12})$ $\xrightarrow[ii) H_3O^+]{i) O_2}$ $P$ $\xrightarrow{CHCl_3/NaOH}$ $Q$ (major) + $R$ (minor)
$Q$ $\xrightarrow[PhCH_2Br]{NaOH}$ $S$
$(A)$ $R$ is steam volatile
$(B)$ $Q$ gives dark violet coloration with $1 \%$ aqueous $FeCl_3$ solution
$(C)$ $S$ gives yellow precipitate with $2, 4-dinitrophenylhydrazine$
$(D)$ $S$ gives dark violet coloration with $1 \%$ aqueous $FeCl_3$ solution