Multiple Choice Questions on Dinitrogen N2 and dioxygen O2 are the main constituents of air but they do not react with each other........... for NDA Exam Preparation

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Multiple Choice Questions

Dinitrogen N2 and dioxygen O2 are the main constituents of air but they do not react with each other...........

General Science (NDA) Chemistry
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    Dinitrogen (N2) and dioxygen (O2) are the main constituents of air but they do not react with each other to form oxides of nitrogen because

    the reaction requires initiation by a catalyst

    Incorrect Answer

    oxides of nitrogen are unstable

    Incorrect Answer

    the reaction is endothermic and requires very high temperature

    Correct Answer

    the stoichiometry of N2 and O2 in air is not ideal for the reaction to take place

    Incorrect Answer
    Explanation:

    It is because:
    (i) the reaction is endothermic and requires very high temperature.
    (ii) the reaction can be initiated only in presence of a catalyst.
    (iii) oxides of nitrogen are unstable.
    (iv) N2 and 02 are unreactive.

    By: Munesh Kumari
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