Define the following terms with a suitable example in each:

(i) Broad - spectrum antibiotics

(ii) Disinfectants

(iii) Cationic detergents

 

 

 

 
 
 
 
 

Answers (1)

(i) Antibiotics that are effective aganist a wide-range of gram - positive and gram - negative bacteria are known as broad - spectrum antibiotics, for eg. Chloramphenicol.

(ii) Disinfectants are chemical substances which kill micro - organisms but are not safe to be applied to the living tissues. Fir eg. Boric acid, Bithional, savlon, Dettol, etc.

(iii) Cationic Detergents: The detergents in which cations are major part of their molecules and are involved in the cleansing action. These are quartenary ammonium salts of amines with acetates , chlorides or bromides. for eg. Cetyltrimethylammonium bromide.

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