1.

According to Hardy- Schulze rule, the coagulating power of cation follows the order :

Answer»

`NA^(+)GTBA^(2+)gtAl^(3+)`
`AL^(3+)gtBa^(2+)gtNa^(+)`
`BA^(2+)gtAl^(3+)gtNa^(+)`
`Al^(2+)gtNa^(+)gtBa^(2+)`

Solution :More the change on CATION, higher the coagulating power.


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