JEE Main Chemistry question
Not in JEE Main or NEET syllabus
In an experiment, addition of 5.0 mL of 0.006 M to 10.0 mL of arsenic sulphide sol just causes complete coagulation in 34 h. The flocculating value of the effective ion is (in millimoles per litre of sol).
Answer: 2
Solution
sol is negatively charged due to preferential adsorption of ions, so the cation is the effective coagulating ion. Millimoles of added
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