. Which of the following is a cationic detergent ? (1) Sodium lauryl sulphate (2) Sodium stearate (3) Cetyltrimethyl ammonium bromide (4) Sodium dodecylbenzene sulphonate
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Correct option is-3
Cetyltrimethyl ammonium bromide
Cationic detergents are quaternary ammonium salts of amines with acetate, chlorides, or Bromides as anions.
Cations are long-chain hydrocarbons having a positive charge on N atom. Eg: Cetyl trimethyl ammonium bromide
C19H42N+Br− (cationic detergent)
Synthetic detergents
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