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The K(sp) of CuS, Ag(2)S and HgS are 10^...

The `K_(sp)` of CuS, `Ag_(2)S` and `HgS` are `10^(-31), 10^(-44)` and `10^(-54)` respectively. The solubility of these sulphides are in the order.

A

`Ag_(2)S gt CuS gt HgS`

B

`Ag_(2) S gt HgS gtCuS`

C

`HgS gt Ag_(2)S gt CuS`

D

`CuS gt Ag_(2)S gt HgS`.

Text Solution

Verified by Experts

The correct Answer is:
A
The one with smallest `K_(sp)` value is least soluble and so on.
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