Question

Hard water when passed through ion exchange resin
containing R’COOH groups, becomes free from :
(a) Cl⁻ (b) SO₄²⁻
(c) H₃O⁺ (d) Ca²⁺

Answer 1

Explanation:

ANSWER

Hard water contains Ca and Mg salt so when it is passed through negative ion exchange resin, it capture cations from water and make it free from

(d) Ca²⁺

.

Answer 2

Explanation:

Hard water when passed through ion exchange resin

containing R’COOH groups, becomes free from :

(a) Cl⁻ (b) SO₄²⁻

(c) H₃O⁺ (d) Ca²⁺