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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

CuS gets precipitated.

B

Both CuS and ZnS get precipitatd

C

Neither CuS nor ZnS precipitated.

D

ZnS get precipitated.

Text Solution

Verified by Experts

The correct Answer is:
A
`K_(sp)` of `CuS lt K_(sp) "of" ZnS` so CUS get precipitated first
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NARAYNA-ACIDS & BASES-EXERCISE-II (H.W.) (SOLUBILITY PRODUCT & COMMON ION EFFECT)
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