The cationic detergent used in hair conditioners is ......... .

Match the detergents given in Column-$I$ with their uses given in Column-$II$.

Column-$I$	Column-$II$
$(A)$ $[CH_{3}(CH_{2})_{15}N(CH_{3})_{3}]^{+}Br^{-}$	$(1)$ Dishwashing powder
$(B)$ $CH_{3}(CH_{2})_{11}-C_{6}H_{4}-SO_{3}^{-}Na^{+}$	$(2)$ Laundry soap
$(C)$ $C_{17}H_{35}COO^{-}Na^{+} + Na_{2}CO_{3} +$ Rosin	$(3)$ Hair conditioners
$(D)$ $CH_{3}(CH_{2})_{16}COO(CH_{2}CH_{2}O)_{n}CH_{2}CH_{2}OH$	$(4)$ Toothpaste

Which type of drugs are useful for anxiety and stress?

Paracetamol is a/an

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 ...... .

Which of the following drugs are antimicrobials?