Assertion : $M n O_{2}$ can act as an oxidizing agent as well as reducing agent. Reason: Oxidation state of $M n$ lies between highest and lowest oxidation state.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The electronic configuration of $M n$ is $1 s^{2} 2 s^{2} p^{6} 3 s^{2} p^{6} d^{5} 4 s^{2}$ .
Therefore, it can lose $7$ electrons and oxidation state can vary in between $0$ to $7$ .
In $M n O_{2}$ , oxidation state of Mn is $+ 4$ , which lies between highest and lowest oxidation state, so it can act as an oxidizing agent as well as reducing agent.

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