Question:
The Kₛp of CuS, Ag₂S and HgS are 10⁻⁴⁴, 10⁻³¹, 10⁻⁵⁴ respectively. The solubility order of these sulphides are in the order:
The Kₛp of CuS, Ag₂S and HgS are 10⁻⁴⁴, 10⁻³¹, 10⁻⁵⁴ respectively. The solubility order of these sulphides are in the order:
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Higher solubility corresponds to higher Kₛp.
Updated On: Mar 18, 2026
- Ag₂S > CuS > HgS
- Ag₂S > HgS > CuS
- HgS > Ag₂S > CuS
- CuS > Ag₂S > HgS
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The Correct Option is A
Solution and Explanation
Step 1: Larger Kₛp implies higher solubility.
Step 2: 10⁻³¹ > 10⁻⁴⁴ > 10⁻⁵⁴
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