Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of nitrogen because

Options

(a) the reaction is endothermic and requires very high temperature
(b) the reaction can be initiated only in presence of a catalyst
(c) oxides of nitrogen are unstable
(d) N₂ and O₂ are unreactive

Correct Answer:

the reaction is endothermic and requires very high temperature

Explanation:

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