| Assertion: Nitrogen is unreactive at room temperature but becomes reactive at elevated temperatures or in presence of a catalyst. |
| Reason: In nitrogen molecule, there is extensive delocalization of electrons. |
A) Assertion and reason both are correct statements and reason is correct explanation for assertion.
B) Assertion and reason both are correct statements but reason is not correct explanation for assertion.
C) Assertion is correct statement but reason is wrong statement.
D) Assertion is wrong statement but reason is correct statement.
Correct Answer: B
Solution :
Due to small size and high dissociation energy \[\left( 946\text{ }kJ\text{ m}o{{l}^{-1}} \right)\] of nitrogen, it is unreactive.
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