Which of the following is an artificial sweetening agent?

Which of the following are synthetic detergents?
$A$) $CH_3(CH_2)_{10}CH_2OH$
$B$) $CH_3(CH_2)_{10}CH_2OSO_3Na$
$C$) $CH_3(CH_2)_{15}N(CH_3)_3Br$
$D$) $(C_{15}H_{31}COO)_3C_3H_5$

Explain Antifertility Drugs.

Which of the following compounds is an example of a hypnotic drug?

$A$ drug that is antipyretic as well as analgesic is

Bithionol is added to soaps to impart antiseptic properties. The number of $-OH$ and $-Cl$ groups in its structure are respectively