Assertion :Van der Waals' constant ′a′ depends on the intermolecular force. Reason: Van der Waals' constant ′b′ depends on the radius of gas molecule.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Assertion is incorrect but Reason is correct
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion Vanderwaal's constant a provides a connection for inter-molecular forces constant b is a correction fun finite molecular size, and it's value is the volume of 1mole of atoms or molecules. (P+an2V2)(V−nb)=nRT