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Per NCERT, who proposed the LAW OF CONSERVATION OF MASS in 1789 — and is called the Father of Modern Chemistry?
AJohn Dalton
BDmitri Mendeleev
CAntoine Lavoisier
DJoseph Proust
Answer & Solution
Correct answer: C. Antoine Lavoisier
Per NCERT §9.1 Meet a Scientist box, Lavoisier proposed the conservation law in 1789. Dalton gave atomic theory; Proust gave constant proportions; Mendeleev gave the periodic table.
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