Q.

The conversion of  PbO2  to  PbNO32 is

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a

Oxidation

b

Reduction

c

Neither oxidation nor reduction

d

Both oxidation and reduction

answer is B.

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Detailed Solution

In this reaction, oxidation state of Pb changes from +4 (PbO2) to +2  (Pb(NO3)2) .Thus reduction occurs.
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