Assertion: The standard unit for expressing the mass of atoms is a.m.u.
Reason: a.m.u. stands for mass of 1 atom of carbon.
a) Both assertion and reason are CORRECT and reason is the CORRECT explanation
of the assertion.
b) Both assertion and reason are CORRECT but, reason is NOT THE CORRECT
explanation of the assertion.
c) Assertion is CORRECT but, reason is INCORRECT.
d) Assertion is INCORRECT but, reason is CORRECT.
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Answer:
Explanation: The standard unit for expressing the mass of an atom is amu (atomic mass unit). It is equal to 1/12 of the mass of an atom of carbon-12 equal to 1.6605×10^−19 g. amu is also called as avogram. Avogram is a unit of mass and weight equal to one gram divided by the Avogadro's number.
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