Dinitrogen
Easychemistry
N₂ is relatively inert at room temperature due to:
Select the correct option:
Solution
Incorrect! Answer:
High bond energy of N≡N
Dinitrogen (N2) constitutes 78% of our atmosphere and is very unreactive under normal conditions.
- The Triple Bond: Nitrogen atoms are held together by an incredibly strong triple covalent bond (N≡N).
- Bond Dissociation Enthalpy: This bond requires a massive 946 kJ/mol of energy to break. Because of this extremely high activation energy, N2 stays 'inert' at room temperature and only reacts at very high temperatures or in the presence of specific catalysts.
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About This Question
- Subject
- chemistry
- Chapter
- p-block elements
- Topic
- dinitrogen
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
High bond energy of N≡N
Dinitrogen (N2) constitutes 78% of our atmosphere and is very unreactive under normal conditions.
- The Triple Bond: Nitrogen atoms are held together by an incredibly strong triple covalent bond (N≡N).
- Bond Dissociation Enthalpy: This bond requires a massive 946 kJ/mol of energy to break. Because of this extremely high activation energy, N2 stays 'inert' at room temperature and only reacts at very high temperatures or in the presence of specific catalysts.
This easy difficulty chemistry question is from the chapter p-block elements, covering the topic of dinitrogen. It appeared in the 2025 exam.
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