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The coagulating power of electrolytes ha...

The coagulating power of electrolytes having inos `Na^(o+),Al^(3+)` and `Ba^(2+)` for arsenic sulphide sol increases in the order

A

`Na^+ gt Al^(+) gt Ba^(+2)`

B

`PO_4^(3-) gt SO_4^(2-) gt Cl^(-)`

C

`Cl^(-) gt SO_4^(2+) gt PO_(4)^(3-)`

D

`Al^(3+) gt Ba^(2+) gt Na^(+)`

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