Solved UPSC CDS/OTA Question
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Q · Atoms and MoleculesMedium · 45s
In chemical reactions, the law of conservation of mass was given by:
TopicAtoms and Molecules
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Lavoisier established that mass is conserved in chemical changes.
Final Answer: Option B - Lavoisier