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Preparation of Chlorine

A dilute solu...

Question

A dilute solution of sodium sulphate in water is electrolysed using Pt electrodes. The products at cathode and anode respectively are ?

A

H_{2} a n d O_{2}

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B

O_{2} a n d H_{2}

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C

O_{2} a n d N a

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D

O_{2} a n d {S O}_{2}

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Solution

The correct option is A $H_{2} a n d O_{2}$
$H^{+} + 2 e^{-} \to 2 H_{2}$ Reaction at Cathode
$2 H_{2} O \to O_{2} + 4 e^{-} + 4 H^{+}$ Reaction at cathode
Option a is correct

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