CUET Preparation Today
A dilute solution of sodium sulphate in water is electrolysed using Pt electrodes. What are the products formed at cathode an anode respectively?
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H2 and O2 O2 and H2 O2 and Na O2 and SO2 |
H2 and O2 |
Na2SO4 ⇔ 2Na+ + SO42- H2O ⇔ H+ + OH- At anode: 2OH- → H2O + \(\frac{1}{2}\)O2 + 2e- At cathode: 2H+ + 2e- → H2 |
