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Pb(NO(3))(2) on heating gives a brown ga...

`Pb(NO_(3))_(2)` on heating gives a brown gas which undergoes dimerization on cooling? Identify the gas.

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Nitrogen dioxide gas `(NO_(2))`
`2 Pb (NO_(3))_(2) overset(Delta)(to) 2PbO + 4NO_(2) + O_(2)`
`2NO_(2)to N_(2)O_(4)`
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XII BOARDS PREVIOUS YEAR-XII BOARDS-CHEMISTRY (THEORY)
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