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A water sample has ppm level concentrati...

A water sample has ppm level concentration of following anions
`F^(-)=10,SO_(4)^(2-)=100,NO_(3)^(-)=50`
The anion/anions that make/makes the water sample unsuitable for drinking is/are:

A

Only `SO_(4)^(2-)`

B

Only `NO_(3)^(-)`

C

Both `SO_(4)^(2-)` and `NO_(3)^(-)`

D

Only `F^(-)`

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