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A solution of sodium sulphate in water is electrolysed using inert electrodes. The products at cathode and anode are, respectively :
A. |
`H_2 , O_2` |
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B. |
`O_2 , H_2` |
C. |
`O_2 , Na` |
D. |
`O_2 SO_2` |
`Na^+` ions are not reduced at cathode and `SO_4^(2–)` ions are not oxidised at anode.