MCQ
The compound $(X)$ is


- A$CH_3COOH$
- B$BrCH_2 - COOH$
- ✓$(CH_3CO)_2O$
- D$CHO - COOH$

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$S_2O_8^{2-} + 2e^- \longrightarrow 2SO_4^{2-}$
$Mn^{2+} + 4H_2O \longrightarrow MnO_4 + 8H^+ + 5e^-$
How many moles of $S_2O_8^{2-}$ are required to oxidise $1\, mole$ of $Mn^{ 2+}$ ?