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Give an equation for the removal of perm...

Give an equation for the removal of permanent hardness in water.

A

`Na_(2)AI_(2) SI_(2) O_(8). xH_(2) O + MG^(2+) to` Product

B

`Na_(2) [Na_(4)(PO_(3))_(6)] + Mg^(2+) to` product

C

`R = NH_(3)^(+) OH^(-) + SO_(4)^(2-) to` product

D

`Na_(2) CO_(3) + Ca^(2_) to` product

Text Solution

Verified by Experts

The correct Answer is:
C
`2 underset("Resin")(RNH_(3)^(+) OH^(-) + SO_(4)^(2-) to (RNH_(3))_(2) SO_(4) + 2OH^(-)`
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