Which of the following drugs is not an analgesic?

Match the structures given in Column-$I$ with the type of detergents given in Column-$II$.

Column-$I$	Column-$II$
$(A)$ $CH_3(CH_2)_{16}COO(CH_2CH_2O)_nCH_2CH_2OH$	$(1)$ Cationic detergent
$(B)$ $C_{17}H_{35}COO^-Na^+$	$(2)$ Anionic detergent
$(C)$ $CH_3(CH_2)_{10}CH_2SO_3^-Na^+$	$(3)$ Nonionic detergent
$(D)$ $[CH_3(CH_2)_{15}N(CH_3)_3]^+Br^-$	$(4)$ Soap

Amoxicillin is a modern semi-synthetic modification of which of the following?

‘Placebo’ is often given to patients. It is

Assertion : Penicillin is an antibiotic.
Reason : The drugs which act on the central nervous system and help in reducing anxiety are called antibiotics.

With reference to which classification has the statement,"ranitidine is an antacid" been given?