Q.

Assertion : Nitrogen and oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen.

 Reason : The reaction between nitrogen and oxygen requires high temperature

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a

The assertion is incorrect, but the reason are correct.

b

Both assertion and reason are correct, and the reason is the correct explanation for the assertion

c

Both assertion and reason are correct and reason is correct explanation of assertion.

d

Both the assertion and reason are incorrect.

answer is A.

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Detailed Solution

The major elements in the atmosphere are oxygen and nitrogen, however these do not combine to generate oxides of nitrogen.
This is because a high temperature is necessary to break through the activation energy barrier in the interaction between nitrogen and oxygen.
As a result, Reason is the appropriate justification for Assertion, and both Assertion and Reason are true.

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