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Nitric Acid

When conc. ...

Question

When conc. $H N O_{3}$ is heated, it decomposes to give-

O_{2}

and

N_{2}

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N O

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N_{2} O_{5}

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N O_{2}

and

O_{2}

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Solution

The correct option is D $N O_{2}$ and $O_{2}$

When $H N O_{3}$ is subjected to thermal decomposition it gives oxygen and nitrogen dioxide gas.
$4 H N O_{3} \to 2 H_{2} O + 4 N O_{2} + O_{2}$ .
Hence option D is correct.

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