Penicillin is a/an ...... .

One of the most widely used drugs in medicine,Iodex,is

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

List-$I$	List-$II$
$A$. Antifertility drug	$I$. Norethindrone
$B$. Tranquilizer	$II$. Meprobamate
$C$. Antihistamine	$III$. Seldane
$D$. Antibiotic	$IV$. Ampicillin

Choose the correct answer from the options given below:

What does a biodegradable detergent structurally contain?

Which of the following statements are true for saccharin?
$(A)$ It is a sodium salt and is not soluble in water.
$(B)$ It is much sweeter than cane sugar.
$(C)$ It is of great value for diabetic patients and is excreted as such in urine.
$(D)$ It is harmful.

Which of the following is used as a 'morning after pill'?