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The proportion of CaF(2) in a sample of ...

The proportion of `CaF_(2)` in a sample of water is 156 ppm. What will be its molarity ? [Mole. Mass of `CaF_(2)` is 78 gm/mol.]

A

0.01 M

B

0.02 M

C

0.002 M

D

0.001 M

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The correct Answer is:
C
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