MolSynapsequestion bank

MolSynapse / Question bank / Redox Reactions / Oxidising and reducing agents, disproportionation

NEET levelSingle correct optionDifficulty 1 of 3rx067

In the acidic reaction $2 MnO X_{4} X^{-} + 5 H X_{2} O X_{2} + 6 H X^{+} 2 Mn X^{2 +} + 5 O X_{2} + 8 H X_{2} O$ , hydrogen peroxide acts as

Aan oxidising agent, because O goes from -1 to -2
Bboth oxidising and reducing agent in the same step
Ca reducing agent, because O goes from -1 to 0
Da spectator that is neither oxidised nor reduced

Answer: C

Permanganate is reduced (Mn +7 to +2), so something must be oxidised. In

H X_{2} O X_{2}

oxygen goes from -1 to 0 in

O X_{2}

, so

H X_{2} O X_{2}

loses electrons and is the reducing agent. All the

O X_{2}

formed is oxidation product only.

Practice Redox Reactions More on Oxidising and reducing agents, disproportionation

Previous questionNext question

More questions on Oxidising and reducing agents, disproportionation

Select ALL species that can act ONLY as reducing agents (judge by the oxidation state of the non-hydrogen element). JEE Main level
In the reaction SnCl2 + 2HgCl2 -> SnCl4 + Hg2Cl2, the reducing agent and the reduced product are respectively JEE Main level
On heating, phosphorous acid disproportionates: 4H3PO3 -> 3H3PO4 + PH3. The ratio of the number of P atoms oxidised to the number reduced is JEE Advanced level
Which of the following is a disproportionation reaction? NEET level
Which of the following are disproportionation reactions? JEE Main level
Select ALL correct statements. JEE Advanced level