Home › CBSE Class 9 › Chemistry › Atomic Foundations Of Matter › The Law of Conservation of Mass was proposed in:
The Law of Conservation of Mass was proposed in:
A1897
B1932
C1789
D1808
Answer & Solution
Correct answer: C. 1789
1. Lavoisier worked in France in the eighteenth century.
2. His law came before Dalton's atomic theory.
3. He proposed it in 1789.
4. So the answer is 1789.
_Source: NCERT Class 9 Science, Ch 9 'Atomic Foundations of Matter'_
Related questions
Decomposing 9 g of pure water gives how much hydrogen?An atom with fewer than four valence electrons will usually:Sodium chloride has sodium and chlorine in the mass ratio:If 12 g of carbon combines with 32 g of oxygen, the carbon dioxide formed is:CO is named carbon:Which prefix indicates four atoms?CO2 is named:The water molecule is represented as: