In the following equation, $M n O_{2}$ acts as :
$M n O_{4}^{-} + 2 H_{2} O + 3 e^{-} ⟶ M n O_{2} + 4 ⊖ O H$

oxidising agent

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

reducing agent

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

both oxidising agent and reducing agent

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

neither oxidising nor reducing agent

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

Open in App

Solution

The correct option is C oxidising agent
Oxidation number of Mn in $(M n O_{4})^{-}$ is +7.
Oxidation number of Mn in $M n O_{2}$ is +4.
Hence, $M n O_{2}$ acts as oxidising agent as it accepts electrons.

Suggest Corrections

Similar questions

Q. In the following reactions, identify the oxidising agent and the reducing agent.

4 H C l + M n O_{2} \to M n C l_{2} + 2 H_{2} O + C l_{2}

Q. In the following reactions, identify the oxidising agent and the reducing agent.

4 H C l + M n O_{2} \to M n C l_{2} + 2 H_{2} O + C l_{2}

Identify the substance oxidized, substance reduced, oxidising agent and reducing agent.
$M n O_{2}$ + $4 H C l$ $\to$ $M n {C l}_{2}$ + $2 H_{2} O$ + ${C l}_{2}$ .

Q. In the following reaction, identify the species oxidised, the species reduced, the oxidising agent and the reducing agent.

4 H C l + M n O_{2} \to M n C l_{2} + 2 H_{2} O + C l_{2}

Identify the correct statement about $H_{2} O_{2}$

Join BYJU'S Learning Program

In the following equation, MnO2 acts as :MnO−4+2H2O+3e−⟶MnO2+4⊖OH

The correct option is C oxidising agentOxidation number of Mn in (MnO4)− is +7.Oxidation number of Mn in MnO2 is +4.Hence, MnO2 acts as oxidising agent as it accepts electrons.

In the following equation, $M n O_{2}$ acts as :
$M n O_{4}^{-} + 2 H_{2} O + 3 e^{-} ⟶ M n O_{2} + 4 ⊖ O H$

The correct option is C oxidising agent
Oxidation number of Mn in $(M n O_{4})^{-}$ is +7.
Oxidation number of Mn in $M n O_{2}$ is +4.
Hence, $M n O_{2}$ acts as oxidising agent as it accepts electrons.