Chemistry NMDCAT MCQs Moles and Avogadro's Numbers Moles and Avogadro’s Numbers

nmdcat.online July 2, 2026

The relationship between one carbon-12 atom and one atomic mass unit is

A. Equal masses

B. Carbon atom is twelve times heavier

✓

C. Atomic mass unit is twelve times heavier

D. Both have identical masses

📝 Explanation

One atomic mass unit is defined as one-twelfth the mass of a carbon-12 atom.

📖 Additional Information

Equal masses
Carbon atom is twelve times heavier
Atomic mass unit is twelve times heavier
Both have identical masses

One atomic mass unit is defined as one-twelfth the mass of a carbon-12 atom.

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