Nitrous oxide is prepared by the thermal decomposition of:

Dinitrogen tetroxide

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Ammonium Nitrate

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Ammonium Nitrite

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Diazomethane

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Solution

The correct option is B Ammonium Nitrate
Ammonium nitrate decomposes into nitrous oxide and water vapour upon heating.
$N H_{4} N O_{3} (S) Δ - \to N_{2} O (g) + 2 H_{2} O (g)$

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(N_{2} O)

Gases evolved during the thermal decomposition of mercuric nitrate $H g (N O_{3})_{2}$ are:

(N_{2} O)

\begin{matrix} t (m i n u t e s) & 0 & 20 & 40 & 60 & 80 C o n c e n t r a t i o n o f N_{2} O (m o l L^{- 1}) & 0.10 & 0.08 & 0.06 & 0.04 & 0.02 \end{matrix}

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