Answer:
Detergents are of three types
(i) Cationic
(ii) Anionic (iii) Non-ionic
(i) Cationic
detergents : Detergents in which large part of molecules is cationic are
called cationic detergents.
These are quaternary
ammonium salts.
e.g.
Cetyltrimethyl ammonium bromide
(ii) Anionic
detergents : Detergents in which large part of the molecule is anion.
These are
generally sulphonates.
e.g.
Sodium dodecylbenzene sulphonate.
(iii)
Non-ionic detergent : Detergents which do not contain any ions. These are
generally esters of long chain fatty acids with long chain alcohols.
e.g.
Ester of polyethlene glycol with stearic acid
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