Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ - decoded step-by-step.
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Q · Atoms and MoleculesMedium · 45s
Which of the following has the highest number of atoms?
TopicAtoms and Molecules
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
O₃ → 3 atoms per molecule, so 1 mole has 3 x Avogadro’s number atoms.
Final Answer: Option B - 1 mole of O₃