Sodium hydrogen sulphite $(N a H S O_{3})$ is added to a neutral permanganate ion solution. In the reaction that follows, the permanganate ion will be reduced to

M n O_{4}^{2 -}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

M n O_{4}^{-}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

M n O_{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

M n^{2 +}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $M n O_{2}$
Reaction of permanganate ion in neutral medium
In neutral or weakly basic medium, permanganate ion in $+ 7$ oxidation state is reduced to +4 oxidation state in $M n O_{2}$ by gaining $3$ electrons.
$M n O_{4}^{-} (a q) + 2 H_{2} O + 3 e^{-}$
$\to M n O_{2} + 4 O H^{-} (a q)$
So, option (C) is the correct answer.

Suggest Corrections

Similar questions

State whether the statement is True or False:

With manganese(II) ion solutions, alkaline aqueous sodium carbonate solution yields pink colour permanganate ions.

M n O_{4}^{-} (a q) + H_{2} O_{2} (a q) {H - \to}^{+} M n^{2 +} (a q) + O_{2} (g)

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program