Question

predict the products of electrolysis of dilute solution of H2 S o4 with Platinum electrodes​

Answer 1

At the cathode, the following reduction reaction occurs to produce H2 gas.

H+ (aq) + e- → ½ H2(g)

At the anode, the following processes are possible.

For dilute sulphuric acid, reaction (i) is preferred to produce O2 gas. But for concentrated sulphuric acid, reaction (ii) occurs.

Answer 2

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