Q.

On electrolysis of dil. sulphuric acid using Platinum (Pt) electrode, the product obtained at anode will be :

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Oxygen gas

H2S gas

SO2 gas

Hydrogen gas

answer is A.

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Detailed Solution

H2SO4⟶2H++SO42− (dilute) Sulphate ion can never oxidise, sulphur in highest ox.state; At anode, 2H2O⟶4H++4e−+O2

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