Solved UPSC CDS/OTA Question
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Q · Atoms and MoleculesMedium · 45s
Who proposed the atomic theory that laid the foundation of modern chemistry?
TopicAtoms and Molecules
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Dalton proposed the atomic theory in 1808, stating that all matter is made of indivisible atoms, and atoms of the same element are identical in mass and properties.
Final Answer: Option B - John Dalton