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A solution contain 0.1 MZn^(2+) and 0.01...

A solution contain `0.1 MZn^(2+)` and `0.01 M Cu^(+2)` ins. This solution is saturated by passing `H_(2)S` concentration is `8.1' 10^(-21) M` . Ksp for `ZnS` and `CuS` are `3'10^(-22)` and` 8'10^(-36)` respectively. Which of the following will occur in solution.

A

Only ZnS precipitates

B

Both CuS and ZnS precipitates

C

Only CuS precipitates

D

No precipitation occurs

Text Solution

Verified by Experts

The correct Answer is:
B
For precipitation
`IP gt K_(sp)`
`[Zn^(2+)][S^(2-)] gt K_(sp)`
`[Cu^(2+)][S^(2-)] gt K_(sp)`
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