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When PbO(2) reacts with conc. HNO(3) the...

When `PbO_(2)` reacts with conc. `HNO_(3)` the gas evolved is

A

`NO_(2)`

B

`O_(2)`

C

`N_(2)`

D

`N_(2)O`

Text Solution

Verified by Experts

The correct Answer is:
A
`PbO_(2)` is a powerful oxidising agent and liberate `O_(2)` when treated with acids.
`2PbO_(2) + 4HNO_(3) to 2Pb(NO_(3))_(2) + 2H_(2)O + O_(2)`
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