Which of the following statements are false about soaps and detergents

1.	Which of the following statements are false about soaps and detergents? (i) Soaps are water soluble while detergents are not. (ii) Soaps are non-biodegradable while detergents are biodegradable. (iii) Hardness of water is due to presence of Ca and Mg salts which form scum with soap. (iv) The polar group in soaps is -COONa.(A) (i), (ii) and (iii) only (B) (i) and (ii) only (c) (iii) and (iv) only (D) (i), (ii) and (iv) only
Answer» Correct option (B) (i) and (ii) only Explanation: Soaps and detergents are water soluble. Soaps are biodegradable while, detergents are not.

Which of the following statements are false about soaps and detergents? (i) Soaps are water soluble while detergents are not. (ii) Soaps are non-biodegradable while detergents are biodegradable. (iii) Hardness of water is due to presence of Ca and Mg salts which form scum with soap. (iv) The polar group in soaps is -COONa.(A) (i), (ii) and (iii) only (B) (i) and (ii) only (c) (iii) and (iv) only (D) (i), (ii) and (iv) only

Answer»

Correct option (B) (i) and (ii) only

Explanation:

Soaps and detergents are water soluble. Soaps are biodegradable while, detergents are not.