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  4. Which of the following oxide of nitrogen is most thermally stable?

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Q. Which of the following oxide of nitrogen is most thermally stable?

UP CPMTUP CPMT 2006

Solution:

$NO$ is the most thermally stable oxide of nirtogen
$2NO \ce{ ->[900^{\circ}C] }N_{2}O_{2}$
$2N_{2}O \ce{ ->[500-900^{\circ}C] }2N_{2}+O_{2}$
$N_{2}O_{3} \ce{ ->[{\text{Room temperature}}] }NO+O_{2}$
$2N_{2}O_{5} \ce{ ->[40^{\circ}] }4NO_{2}+O_{2}$