1.

The mosteffectiveelectrolyte for the coagulation of As_2S_3Sol is ..............

Answer»

NaCl
`Ba(NO_3)_2`
`K_3[FE(CN)_6]`
`Al^(3+)`

Solution :`As_2S_3` is a -vely charged colloid . It wil be most EFFECTIVELY coagulated by the CATION with greatervalency .i.e., `Al^(3+)` .


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