Nitrogen and Oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen.
The reaction between nitrogen and oxygen requires high temperature.
- Both assertion and reason are correct, and the reason is the correct explanation for the assertion
- Both assertion and reason are correct, but the reason is not the correct explanation for the assertion
- The assertion is incorrect, but the reason is correct
- Both the assertion and reason are incorrect
The Correct Option is A
Solution and Explanation
The given question presents an assertion and a reason related to the reactivity of nitrogen and oxygen in the atmosphere. Let us analyze each statement:
- Assertion: Nitrogen and Oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen.
Nitrogen (N2) and oxygen (O2) are indeed the most abundant gases in the Earth's atmosphere. However, under normal conditions, they do not react to form nitrogen oxides. This is due to the triple bond in N2, which is very stable and requires a significant amount of energy to break.
- Reason: The reaction between nitrogen and oxygen requires high temperature.
The formation of nitrogen oxides (NO, NO2, etc.) does occur but generally requires high temperatures, such as in an engine or during a lightning storm, where sufficient energy is available to overcome the activation energy barrier and break the N2 bonds.
Hence, both the assertion and the reason are correct.
Now, let's evaluate if the reason correctly explains the assertion:
- The reason provided states that high temperature is necessary for nitrogen and oxygen to react. This directly explains why, under normal atmospheric conditions, these gases do not readily form nitrogen oxides.
Thus, the reason is indeed the correct explanation for the assertion.
Conclusion: The correct answer is: Both assertion and reason are correct, and the reason is the correct explanation for the assertion.
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