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10^5g of a sample of water contained 16....

`10^5`g of a sample of water contained 16.2 g of `Ca(HCO_3)_2` its hardness is

A

200 ppm

B

300 ppm

C

60 ppm

D

100 ppm

Text Solution

Verified by Experts

The correct Answer is:
D
Hardness in temrs of
`Ca(HCO_(3))_(2)=16.2xx(100)/(162)=10g`
degree of hardness `=(10)/(10^(5))xx10^(6)=100 ppm`
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