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Dinitrogen and dioxygen are main constit...

Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxide of nitrogen because `"…….."`.

A

the reaction is endothermic and requires very high temperature

B

the reaction can be intiated only in presence of a catalyst

C

oxides of nitrogen are unstable

D

`N_(2) and O_(2)` are unreactive

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The correct Answer is:
A
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