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Electrolytic Cell

In which of t...

Question

In which of the following reactions, $K O H$ is not obtained as a product?

2 K + 2 H_{2} O \to

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4 K + O_{2} + 2 H_{2} O \to

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2 K C l (m e l t)

(on

H g -

cathode)

E l e c t r o l y s i s - ------ \to

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All of the above

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Solution

The correct option is D $2 K C l (m e l t)$ (on $H g -$ cathode) $E l e c t r o l y s i s - ------ \to$
In the reaction $(C)$ , $K O H$ is not obtained as a product. Instead, we get $K$ metal.
$2 K + 2 H_{2} O \to 2 K O H + H_{2} ↑$ .
$4 K + O_{2} + 2 H_{2} O \to 4 K O H$ .
$2 K C l (m e l t) (o n H g - c a t h o d e) E l e c t r o l y s i s - ------ \to 2 K (c a t h o d e) + C l_{2} ↑ (a n o d e)$ .

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(b)

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