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1L of pond water contains 20mg of Ca^(2+...

`1L` of pond water contains `20mg` of `Ca^(2+) and 12mg` of `mg^(2+)` ions. What is the volume of a `2N Na_2 CO_3` solution required to soften `5000L` of pond water ?

A

500L

B

50L

C

5L

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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