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CaCl(2) + Na(2) CO(3) rarr 2NaCl + CaCO(...

`CaCl_(2) + Na_(2) CO_(3) rarr 2NaCl + CaCO_(3)`
`CaSO_(4) + Na_(2)CO_(3) rarr CaCO_(3) + Na_(2)SO_(4)`
If hardness is 100 ppm amount of `Na_(2)CO_(3)` required to soften 10 lt. Of hard water is

A

`2.12` gm

B

`0.10` gm

C

`10.6` gm

D

`1.06` gm

Text Solution

Verified by Experts

The correct Answer is:
D
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