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InterviewSolution
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Which of the following solutions having same concentration will have lowest `pH` value?A. KClB. `MgCl_(2)`C. `AlCl_(3)`D. `Na_(3)PO_(4)` |
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Answer» Correct Answer - C `As_(2)S_(3)` is a negatively charged sol. To cause its coagulation , the ions must be positively charged. Greater the magnitude of positive charged, greater will be its coagulating power. Thus `AlCl_(3)` containing `Al^(3+)` ion will be most effective in causing coagulation of `As_(2)S_(3)`. |
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