CBSE 2026 · Region 1 · Set 2 · Q5 · 1 mark
How many Faradays are required to reduce $\displaystyle 1$ mol of $\displaystyle \mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}$ to $\displaystyle \mathrm{Cr}^{3+}$ in acidic medium ?
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle 6$
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CBSE Class 12 Chemistry past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.