Question:
Which of the following ionic substances will be most effective in precipitating the sulphur sol?
Which of the following ionic substances will be most effective in precipitating the sulphur sol?
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Hardy–Schulze rule: Higher valency ⟹ greater coagulating power.
Updated On: Mar 20, 2026
- KCl
- BaCl₂
- Fe₂(SO₄)₃
- Na₃PO₄
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The Correct Option is C
Solution and Explanation
Sulphur sol is negatively charged; coagulation is most effective with highest valency cation (Fe³+).
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