Question

Which theory/model has provided an explanation for the law of conservation of mass and the law of definite proportions?

• A. Dalton's atomic theory
• B. Lavoisier's theory
• C. J.J.Thomson's plum pudding model
• D. Rutherford's atomic model

Answer 1

The correct option is A

Dalton's atomic theory

Dalton's atomic theory says:

• Atoms cannot be divided during a chemical reaction.
• Atoms of two or more elements combine in a small ratio to form compounds.

So we can say that Dalton's atomic theory has provided an explanation for the law of conservation of mass and the law of definite proportions.