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JEE CHEMISTRY MCQ: SURFACE CHEMISTRY

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As2 S3\mathrm{As}_2 \mathrm{~S}_3 sol is most easily precipitated by which ion?
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Correct option: A
Al3+\mathrm{Al}^{3 +}
Option A (Al3+\mathrm{Al}^{3 +}) is correct because according to the Hardy-Schulze rule, ions with higher charges are more effective at causing flocculation.

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