An antibiotic contains a nitro group attached to an aromatic nucleus. It is:

Match the classes of drugs given in Column-$I$ with their action given in Column-$II$.

Column-$I$	Column-$II$
$A$. Analgesics	$1$. Inhibit the growth of microorganisms can be given orally
$B$. Antiseptics	$2$. Treatment of stress
$C$. Antihistamines	$3$. Applied to inanimate objects
$D$. Antacids	$4$. Prevents the interaction of histamine with its receptor
$E$. Tranquilizers	$5$. Pain killing effect
$F$. Antibiotics	$6$. Applied to diseased skin surfaces
$G$. Disinfectants	$7$. Treatment of acidity

Which of the following statements is correct regarding the detergent $Sodium \ lauryl \ sulphate$?

Which artificial sweetener contains chlorine?

Synthetic detergents have an advantage over usual soaps regarding cleansing power. However,the long-term use of synthetic detergents creates environmental pollution. How can the pollution caused by synthetic detergents be minimized? Classify the detergents according to their chemical nature.

The pair whose both species are used in antacid medicinal preparations is