Nitrogen dioxide cannot be obtained by heating:

K N O_{3}

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L i N O_{3}

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P b (N O_{3})_{2}

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N a N O_{3}

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Solution

The correct options are
B $N a N O_{3}$
D $K N O_{3}$
Reactions are:
$N a N O_{3} b e l o w - -- \to 500^{o} C N a N O_{2} + \frac{1}{2} O_{2}$
$L i (N O_{3}) Δ - \to L i_{2} O + N O_{2} ↑ + \frac{1}{2} O_{2} ↑$
$P b (N O_{3})_{2} Δ - \to P b ↓ + 2 N O_{2} ↑ + O_{2} ↑$
$K N O_{3} b e l o w - -- \to 500^{o} C K N O_{2} + \frac{1}{2} O_{2}$

Suggest Corrections

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N O_{2}

N H_{4} N O_{3}, K N O_{3}, N a N O_{2}, P b (N O_{3})_{2}, A g N O_{3}

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N a N O_{3}, N H_{4} N O_{3}, L i N O_{3}, C a (N O_{3})_{2}, P b (N O_{3})_{2}

A g N O_{3}

O_{2} (g)

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