A) ester group
B) sodium sulphate
C) aldehyde
D) amine group
Correct Answer: B
Solution :
[b] A detergent molecule consists of a large hydrocarbon group that is non-ionic and a sulphonate \[(S{{O}_{3}}^{-}N{{a}^{+}})\] or a sulphate \[(S{{O}_{4}}^{-}N{{a}^{+}})\] group that is ionic. Examples of detergents are sodium n-dodecyl benzene sulphonate, sodium dodecyl sulphate etc.
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