Assertion :One mole of oxygen and one mole of $S O_{2}$ contains same number of oxygen atoms. Reason: The amount of oxygen in one mole of $O_{2}$ is same as that in one mole of $S O_{2}$ .

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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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
As oxygen is diatomic molecule and also one molecule of $S O_{2}$ contain two Oxygen atoms. Hence One mole of oxygen and one mole of $S O_{2}$ contains a same number of oxygen atoms.
and also,
The amount of oxygen in one mole of $O_{2}$ is same as that in one mole of $S O_{2}$ .

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Choose the correct option.

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