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Question

3MnO2+4Al3Mn+2+2Al2O3
In this reaction, oxidising agent is:

A
MnO2
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B
Al
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C
Al2O3
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D
Mn
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Solution

The correct option is A MnO2
Oxidising agents are those which oxidise others by reducing itself.
Removal of oxygen or addition of hydrogen is said to be reduction.
Here MnO2 is acting as an oxidising agent.

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