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NDA General Science Chemistry Questions Part 2
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Question : 28
Total: 87
Dinitrogen (N
2
) and dioxygen (O
2
) are the main constituents of air but they do not react with each other to form oxides of nitrogen because
[NDA I 2019]
the reaction requires initiation by a catalyst
oxides of nitrogen are unstable
the reaction is endothermic and requires very high temperature
the stoichiometry of N
2
and O
2
in air is not ideal for the reaction to take place
Validate
Solution:
N
2
and O
2
are main constituents of air but they do not react with each other because N
2
forms Pπ−Pπ bond which is stronger. So, to break that bond high energy is needed. So, it requires very high temperature.
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