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JEE CHEMISTRY MCQ: SURFACE CHEMISTRY

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Which of the following exhibits greater coagulation power towards a negative colloid?
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Correct option: C
AlCl3\mathrm{AlCl}_3
Option C (AlCl3\mathrm{AlCl}_3) is correct because, according to the Hardy-Schulze rule, ions with higher charges have greater coagulating power, and Al3+Al^{3+} has the highest charge among the given options.

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