1
IAT (IISER) 2026
MCQ (Single Correct Answer)
+4
-1
What are the numbers of protons ($\text{H}^+$) and electrons ($\text{e}^-$), respectively, required for the reduction of $[\text{Cr}_2\text{O}_7]^{2-}$ to $\text{Cr}^{3+}$ under an aqueous acidic condition?
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