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Q.

reddish brown coloured gas produced upon decomposition of $Pb {({NO}_{3})}_{2}$ is

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a

${NO}_{2}$

b

$N_{2} O$

c

$N_{2} O_{3}$

d

NO

answer is D.

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Detailed Solution

The reddish brown colour gas is ${NO}_{2}$ .

$2 Pb {({NO}_{3})}_{2} (s) \overset{Δ}{\to} 2 PbO (s) + 4 {NO}_{2} (g) + O_{2} (g)$

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reddish brown coloured gas produced upon decomposition of Pb(NO3)2 is