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Ionic Salts and Their Characteristic

Write the bal...

Question

Write the balanced chemical equations for the following:
"Potassium ferricyanide reacts with hydrogen peroxide in basic solution".

K_{3} F e (C N)_{6} + H_{2} O_{2} + 2 K O H \to K_{4} F e (C N)_{6} + 2 H_{2} O + O_{2}

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2 K_{4} F e (C N)_{6} + H_{2} O_{2} \to 2 K_{3} F e (C N)_{6} + 2 K O H

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2 K_{3} F e (C N)_{6} + H_{2} O_{2} + 2 K O H \to 2 K_{4} F e (C N)_{6} + 2 H_{2} O + O_{2}

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None of these

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Solution

The correct option is D $2 K_{3} F e (C N)_{6} + H_{2} O_{2} + 2 K O H \to 2 K_{4} F e (C N)_{6} + 2 H_{2} O + O_{2}$ .
Option (C) is correct.

Potassium ferricyanide reacts with hydrogen peroxide in basic solution to form potassium ferrocyanide.

$2 K_{3} F e (C N)_{6} + H_{2} O_{2} + 2 K O H \to 2 K_{4} F e (C N)_{6} + 2 H_{2} O + O_{2}$ .
OR
$2 [F e (C N)_{6}]^{3 -} + H_{2} O_{2} + 2 O H^{-} \to 2 [F e (C N)_{6}]^{4 -} + 2 H_{2} O + O_{2}$ .

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