1. Tardigrade
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  3. Chemistry
  4. The solubility product of C u S, C d S and H g S are 10-31, 10-44, 10-54 respectively. The solubility of these sulphides are in the order

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Q. The solubility product of $C u S, C d S$ and $H g S$ are $10^{-31}, 10^{-44}, 10^{-54}$ respectively. The solubility of these sulphides are in the order

AIPMTAIPMT 1997Equilibrium

Solution:

All are binary salts, hence their solubility is equal to square root of their solubility products.
So, order of solubility is $ CuS > CdS > HgS$ or greater the value of solubility product, greater will be the solubility.