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  4. A dilute aqueous solution of Na2SO4 is electrolysed using platinum electrodes. The products at the anode and cathode are respectively

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Q. A dilute aqueous solution of $ Na_2SO_4 $ is electrolysed using platinum electrodes. The products at the anode and cathode are respectively

IIT JEEIIT JEE 1996The s-Block Elements

Solution:

Electrolysis of aqueous $ Na_2SO_4 $ gives $ H_2 (g) $ at cathode and $ O_2(g) $ at anode.