Q. 29

Which of the foll A. Sodium salts of sulphonated long chain alcohol.

B. Ester of stearic acid and polyethylene glycol.

C. Quarternary ammonium salt of amine with acetate ion.

D. Sodium salts of sulphonated long chain hydrocarbons.

Answer A, D

Answer :

Let us discuss about the anionic detergents to answer this


Point to discuss are as follows: -

• They are sodium salts of sulphonated long chain alcohols or hydrocarbons.

• Obtained by neutralization of Alkyl hydrogensulphate with alkali.

• The anionic part of the molecule is involved in the cleansing action.

• Sodium salt of alkybenzenesulphonates are an important class of anionic detergents.

Hence from the above discussion we can conclude that options (i) and (iv) are correct. Options (ii) and (iii) are incorrect.

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