1.

Which one of the following will have the highest. coagulating power for ferrie hydroadde sol?

Answer»

NaCl
`BaCl _(2)`
`K_(2)CrO_(2)`
`K_(4)[FE(CN)_(6)]`

Solution :`Fe (OH)_(3)` is a positively charged sol. Greater the charge on the negative part of the COAGULANT, `([Fe (CN)_(6)^(4-))` higher will be the coagulating power.


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