Question

Consider the following two statements about soap and detergent –
(i) Soap is natural while detergent is a synthetic product.
(ii) Both soap and detergent precipitate scum in hard water
(iii) Soap is sodium or potassium salt of fatty acids
Which of the above statements is (are) true?

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (iii) and (i)
• D. All

Answer 1

The correct option is C (iii) and (i)

Soap forms scum with hard water but detergent does not form any scum. Hence statement (ii) is incorrect.