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Which of the following will cause soften...

Which of the following will cause softening of hard water ?

A

Passing it through cation exchange resin

B

Passing it through anion exchange resin

C

Passing it through sand

D

Passing it through alumina

Text Solution

Verified by Experts

The correct Answer is:
A
In cation exchange resin `Mg^(+2) and Ca^(+2)` (cations) are replaced by `Na^(+)` ions.
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