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Question

Pb3O4+A2Pb(NO3)2+PbO2+H2

A

NH3

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B

HNO3

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C

H2SO4

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D

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Solution

The correct option is B

HNO3


This is a preparation method of PbO2. Try to recall it.

It is obtained as a chocolate brown powder and red lead is treated with nitric acid.

Pb3O4+4HNO32Pb(NO3)2+PbO2+2H2
Therefore,
AHNO3

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