Solved UPSC CDS/OTA Question
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Q · Atoms and MoleculesMedium · 45s
The term ‘Atomic Mass Unit (amu)’ is defined based on which isotope?
TopicAtoms and Molecules
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
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1 amu is 1/12th of the mass of one atom of the carbon-12 isotope.
Final Answer: Option C — Carbon-12