Assertion :The reactions with $H C l$ and $S O_{2}$ show the oxidizing nature of $P b O_{2}$ . Reason: The Lead changes from $P b (I V)$ to $P b (I I)$ ; this represents gain of electrons; $i . e .,$ reduction hence $P b O_{2}$ is an oxidizing agent. Also stability of $P b^{2 +} > P b^{4 +}$ , hence the reaction is spontaneous in forward side.

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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Both Assertion and Reason are incorrect.

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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 Lead changes from $P b (I V)$ to $P b (I I)$ ; this represents gain of electrons; $i . e .,$ reduction hence $P b O_{2}$ is an oxidizing agent.

Also stability of $P b^{2 +} > P b^{4 +}$ ,

hence the reaction $P b^{4 +} + 2 e^{-} \to P b^{2 +}$ is spontaneous in forward side.
So Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Hence option A is correct.

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Similar questions

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Assertion :The reactions with HCl and SO2 show the oxidizing nature of PbO2. Reason: The Lead changes from Pb(IV) to Pb(II); this represents gain of electrons; i.e., reduction hence PbO2 is an oxidizing agent. Also stability of Pb2+>Pb4+, hence the reaction is spontaneous in forward side.