Paracetamol is/are

In the given reaction scheme,$P$ is a phenyl alkyl ether,$Q$ is an aromatic compound; $R$ and $S$ are the major products.
$P$ $\xrightarrow{HI} Q$ $\xrightarrow[\text{(iii) } H_3O^{+}]{\text{(i) } CO_2, \text{(ii) } NaOH} R$ $\xrightarrow[\text{(ii) } H_3O^{+}]{\text{(i) } (CH_3CO)_2O} S$
The correct statement about $S$ is:

Identify an antioxidant,an antiseptic,and an antibiotic respectively from the following:

$A$. Equanil	$B$. Chloramphenicol	$C$. Bithionol
$D$. Aspartame	$E$. Dimetapp	$F$. Butylated hydroxytoluene

Sodium alkyl benzene sulphonate is used as:

Which one is used as a food preservative?

Chlordiazepoxide is