$A$ reaction of phenol with chloroform in the presence of sodium hydroxide to form salicylaldehyde is known as

When phenol reacts with ammonia in the presence of $ZnCl_2$ at $300 \ ^oC$,it gives:

Phenol $+ (HCN + HCl) \xrightarrow[(2)\,\,{H_2}O]{(1)\,ZnCl_2} X$ ; $X$ is

The conversion of $O$-acylated phenol in the presence of $AlCl_3$ to $C$-acylated phenol is an example of which type of organic reaction?

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

The correct sequence of reactions to convert $p$-nitrophenol into quinol involves