NEET Chemistry Chemistry in Everyday Life Questions Solved


Explain the following terms with one suitable exmaple in each case.              (3 marks)

(i) Cationic detergents                    (ii) Enzymes                   (iii) Antifertility drugs

 (i) Cationic detergents : They are quaternary ammonium salts of amines with acetates,

      chlorides or bromides as anions and the cationic part possess a long hydrocarbon chain, and a

      positive charge on nitrogen atom. Therefore they are called cationic detergents.

      Example :  Cetyltrimethyl ammonium bromide



(ii) Enzymes : The enzymes may be defined as bio-catalysts which catalyse the bio-chemical

     reactions in the living organisms.

     Example : Pepsin and Amylase.


(iii) Antifertility drugs : Chemical substances, which are used to check pregnancy in women, are

      called antifertility drugs or birth control pills or oral contraceptives. These control the female

      menstrual cycle and ovulation.

      Example : Norethindrone, Ethinyl estradol, Mestranol.

Difficulty Level:

  • 94%
  • 4%
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