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Which of the following electrolytes is l...

Which of the following electrolytes is least effective in causing flocculation of ferric hydroxide sol?

A

`K_(4)[Fe(CN)_(6)]`

B

`K_(2)CrO_(4)`

C

KBr

D

`K_(2)SO_(4)`

Text Solution

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The correct Answer is:
C
Ferric hydroxide sol is + vely charged sol.
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