Which one of the following is an example of cationic detergent?
Alkyltrimethyl ammonium chloride
Sodium salts of alkyl sulphates
Sodium salts of aklyl benzene and sulphonic acids
Polythene
Alkyltrimethyl ammonium chloride has an ammonium centre which is positively charged. So, it is an example of cationic detergent.
Option 1 is correct.