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H(2)S is passed into one dm^(3) of a sol...

`H_(2)S` is passed into one `dm^(3)` of a solution containing 0.1 mole of `Zn^(2+)` and 0.1 mole of the `Cu^(2+)` till the sulphide ion concentration reaches `8.1 xx 10^(-10)` moles. Which one of the following statements is true? `[K_(sp)` of ZnS and CuS are `3 xx 10^(-22)` and `8 xx 10^(-36)` respectively]

A

Only ZnS precipitate

B

Both CuS and ZnS precipitate

C

Only CuS precipitates

D

No precipitation occurs

Text Solution

Verified by Experts

The correct Answer is:
B
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MODERN PUBLICATION-EQUILIBRIUM-Objective B.(MCQs)
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