Which of them is released on heating $P b {(N O_{3})}_{2}$ ?

N O

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N_{2} O

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N_{2} O_{3}

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N O_{2}

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Solution

The correct option is C $N O_{2}$
Thermal decomposition of lead nitrate (Pb ( $N O_{3}$ ) $_{2}$ ) takes place when it is heated.
${2 P b (N O}_{3}) 2$ (s) $h e a t - -- \to$ $2 P b O (s)$ + ${4 N O}_{2}$ (g) + $O_{2}$ (g).
$N O_{2}$ appears as brown fumes. Lead nitrate and oygen is also produced with $N O_{2}$ .
Hence, the correct answer is $N O_{2}$ .

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