Question
Question: Which of the following will cause softening of hard water ?...
Which of the following will cause softening of hard water ?
A
Passing it through anion exchange resin.
B
Passing it through sand.
C
Passing it through cation exchange resin.
D
Passing it through alumina.
Answer
Passing it through cation exchange resin.
Explanation
Solution
Cation exchange resin exchanges Ca2+, Mg2+ ions from water, and water becomes soft.