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Assertion(A) One atomic mass unit is def...

Assertion(A) One atomic mass unit is defined as one twelth of the mass of one carbon-12 atom.
Reason(R) Carbon-12 isotope is the most abundant isotope of carbon and has been chosen as standard.

A

i

B

ii

C

iii

D

iv

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Verified by Experts

The correct Answer is:
B
Atomic masses of the elements obtained by scientists by comparing with the mass of carbon comes out to be close to whole number value.
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