The ratio of amounts of H2 S needed to p...

The ratio of amounts of `H_2 S` needed to precipitate all the metal ions from 100 mL of 1 M `AgNO_3` and 100 mL of 1 M `CuSO_4` will be

A

`1:1`

B

`1:2`

C

`2:1`

D

none of these

Verified by Experts

The correct Answer is:

B

100 mL of 1 M `AgNO_3 = 0.1 mol AgNO_3` 100 mL of 1 M `CuSO_4 = 0.1 mol CuSO_4`

` therefore ` Ratio of the amounts of `H_2 S` combined = 0.05 :0.1 = 1:2

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