When $P b O_{2}$ reacts with conc $H N O_{3}$ , the gas evolved is:

NO₂

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O₂

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N₂

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N₂O

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Solution

The correct option is B
O₂

$P b O_{2}$ when reacts with nitric acid, it gives $P b (N O_{3})_{2} &$ water and giving out oxygen.

$P b O_{2} + 2 H N O_{3} \to P b (N O_{3})_{2} + H 2 O + O_{2}$

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