What are the products of heating sodium azide in the air?

$N_{2}$

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$N a$

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$N a_{2} O$

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$N O$

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Solution

The correct options are
A
$N_{2}$

C
$N a_{2} O$

Sodium azide $N a N_{3}$ thermally decomposes to sodium and nitrogen around $300^{o} C$ .

$2 N a N_{3} \to 2 N a + 3 N_{2}$

Sodium is highly reactive it readily combusts in air forming sodium oxide.

$4 N a + O_{2} \to 2 N a_{2} O$

Nitrogen does not react at such low temperatures, so $N O$ is not formed.

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