The compound given below is used as ...... .

Identify antihistamines from the following:

$1. \text{Serotonin}$	$2. \text{Dimetane}$
$3. \text{Phenelzine}$	$4. \text{Seldane}$

Which of the following is an antidepressant drug?

Which of the following is used as a disinfectant?

Fill in the blanks:
$(i)$ ........ and ......... drugs are effective for the treatment of cancer.
$(ii)$ ............ is responsible for the depletion of ozone in the stratosphere.
$(iii)$ ......... is helpful for patients suffering from $AIDS$.
$(iv)$ The $SI$ unit of electric current is ...... .

Identify a medicinal compound having amide linkage.