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NEET ChemistryMedium

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

A

(1) Hydrogen gas

B

(2) Oxygen gas

C

(3) H2SH_2S gas

D

(4) SO2SO_2 gas

Step-by-Step Solution

During the electrolysis of dilute H2SO4H_2SO_4 using Pt electrodes, water is oxidized at the anode: 2H2O(l)→O2(g)+4H+(aq)+4e−2H_2O(l) \rightarrow O_2(g) + 4H^+(aq) + 4e^-. Thus, oxygen gas is produced at the anode.

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