The coagulating power of electrolytes having inos `Na^(o+),Al^(3+)` and `Ba^(2+)` for arsenic sulphide sol increases in the orderA. `Al^(3+) lt Ba^(2+) lt Na^(+)`B. `Na^(+) lt Ba^(2+) lt Al^(3+)`C. `Ba^(2+) lt Na^(+) lt Al^(3+)`D. `Al^(3+) lt Na^(+) lt Ba^(2+)`

The coagulating power of electrolytes having inos `Na^(o+),Al^(3+)` an

1.	The coagulating power of electrolytes having inos `Na^(o+),Al^(3+)` and `Ba^(2+)` for arsenic sulphide sol increases in the orderA. `Al^(3+) lt Ba^(2+) lt Na^(+)`B. `Na^(+) lt Ba^(2+) lt Al^(3+)`C. `Ba^(2+) lt Na^(+) lt Al^(3+)`D. `Al^(3+) lt Na^(+) lt Ba^(2+)`
Answer» Correct Answer - B According to Hardy Schulze rule, greater the charge on cation, greater is its coagulating power for negatively charged solution. So, order of coagulating power : `Na^(+) lt Ba^(2+) lt Al^(3+)`.

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The coagulating power of electrolytes having inos `Na^(o+),Al^(3+)` and `Ba^(2+)` for arsenic sulphide sol increases in the orderA. `Al^(3+) lt Ba^(2+) lt Na^(+)`B. `Na^(+) lt Ba^(2+) lt Al^(3+)`C. `Ba^(2+) lt Na^(+) lt Al^(3+)`D. `Al^(3+) lt Na^(+) lt Ba^(2+)`

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