1.

Assertion: The atomic mass of helium is 4.003 amu. Reason: The mass of an atom of helium is 4.003 g.

Answer»

If both ASSERTION and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion.
If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.
If Assertion is CORRECT but Reason is INCORRECT
If Assertion is INCORRECT but Reason is CORRECT.

Answer :C


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