Sodium benzoate is the most important food preservative. Sodium salts of few more acids which can be used as preservatives are sorbic acid and propanoic acid.
123.
Mixture of chloroxylenol and terpineol acts as
(A) The medicines which are used to reduce pain are known as analgesics. For example paracetamol, ibuprofen, morphine, etc.
(B) The chemicals which either prevent the growth of microorganisms or kill them but are not harmful to the living tissues are known as antiseptics. e.g. savlon, dettol. Dettol is one of the most commonly used antiseptics. It is a mixture of chloroxylenol and $$\alpha $$ - terpineol.
(C) The chemical substances which are used to bring down body temperature during fever are called antipyretics, e.g. aspirin, novalgin, etc
(D) The chemicals which are obtained from microorganisms such as bacteria, fungi, etc., or by synthetic methods and used to inhibit the growth or even kill the microorganisms are called antibiotics, eg. penicillin, chloramphenicol, etc.
124.
Which one of the following is employed as antihistamine ?
Chloramphenicol is a broad spectrum antibiotic and is rapidly absorbed from the gastro-intestinal tract and hence can be given orally in case of typhoid, dysentery, acute fever, meningitis and pneumonia.