Prolonged exposure of fat or oil in moist air and light causes bad smell (rancidity). It is due to

Options

A. formation of `C_6- C_12` fatty acids
B. formation of ketone and aldehyde
C. both of these causes
D. formation of glycerol.

Answer

C

Explanation

On long storage in contact with air and moisture , oils and fats develop unpleasant smell . This process is known as ranicidification . It is due to
(a) Enzymatic hydrolysis - producing bad smelling lower fatty acids .
(b) Oxidation of unsaturated acids - producing aldehydes and ketones .