The following molecule acts as an:

Which of the following is an example of a tranquilizer?

Match List-$I$ with List-$II$ :

List-$I$ (Drug)	List-$II$ (Class of Drug)
$a$. Furacin	$i$. Antibiotic
$b$. Arsphenamine	$ii$. Tranquilizers
$c$. Dimetone	$iii$. Antiseptic
$d$. Valium	$iv$. Synthetic antihistamines

Choose the most appropriate match :

An artificial sweetener $X$ is a halogen-containing compound and artificial sweetener $Y$ is a sulphur-containing compound. $X$ and $Y$ respectively are:

$A$ narrow spectrum antibiotic is active against

Which of the following is not a tranquilizer?