The drug used as a post-operative analgesic in medicine is:

Correct statements with respect to morphine $(X)$ and Veronal $(Y)$ are:
$A$. Both $X$ and $Y$ are sleep-producing agents.
$B$. $X$ is hypnotic and $Y$ is analgesic.
$C$. $X$ is analgesic and $Y$ is hypnotic.
$D$. $X$ is non-narcotic analgesic and $Y$ is antidepressant.

Match the List-$I$ with List-$II$.

List-$I$ (Class of Drug)	List-$II$ (Example)
$a$. Antacid	$i$. Novestrol
$b$. Artificial sweetener	$ii$. Cimetidine
$c$. Antifertility	$iii$. Valium
$d$. Tranquilizers	$iv$. Alitame

Which of the following is an antibiotic?

Antiseptics and disinfectants either kill or prevent the growth of microorganisms. Identify which of the following statements is not true.

Which of the following diseases is caused by a protozoan?