MCQ
Structure of $3-$ Methyl $-2-$ cyclohexenol
- A

- B

- ✓

- D






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$\text{Zn}+2\text{HCl}\xrightarrow{ \ \ \ \ \ \ \ }\text{ZnCl}_2+\text{H}_2$

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