Assertion :All gases are not ideal gases. Reason: There are no attractions and repulsions among the gas molecules according to the kinetic molecular theory of gases.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Assertion is clearly correct. All gases are not ideal gases.
Reason is also correct. According to the kinetic theory of gases, the interaction force between the molecules can be ignored. But, there is another point to be noted. The kinetic theory also states that the size of the molecules is negligible. So, we can't ignore this fact when accounting for non-ideal behaviour.
So, assertion and reason both are correct, but the reason is not a correct explanation of the assertion.

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Reason (R) Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formation.

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(c) Assertion is correct, but reason is incorrect
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