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Chemistry · 2025 · 1 mark
CBSE 2025 · Region 7 · Set 1 · Q3
During electrolysis of dilute H_2 SO_4, using platinum electrodes, the gas evolved at the anode is:
During electrolysis of dilute $\displaystyle \mathrm{H}_{2} \mathrm{SO}_{4}$, using platinum electrodes, the gas evolved at the anode is :
Official answer
(B)
$\displaystyle \mathrm{O}_{2}$ gas
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CBSE Class 12 Chemistry past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.