Which of the following electrolyte will have maximum flocculation value for $F e (O H)_{3}$ sol?

$K_{2} S O_{4}$

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$(N H_{4})_{3} P O_{4}$

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$N a_{2} S$

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$N a C l$

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Solution

The correct option is D
$N a C l$

$F l o c c u l a t i o n v a l u e \propto \frac{1}{C o a g u l a t i o n p o w e r}$ .

$C l^{-}$ , has the least charge among anions and thus has minimum coagulation power and maximum flocculation value out of these.

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Similar questions

F e {(O H)}_{3}

A g I / A g^{+}

K_{2} S O_{4}, B a C l_{2}, A l_{2} (S O_{4})_{3}

N H_{4} C l

S b_{2} S_{3}

A g I / {A g}^{+}

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