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The atomic theory explaining both laws of chemical combination was given by:
AProust
BNewton
CPascal
DDalton
Answer & Solution
Correct answer: D. Dalton
1. A British chemist built a theory about the nature of matter.
2. His postulates explained the two laws.
3. That chemist was Dalton.
_Source: syllabus Science Class IX, Chapter 3, Atoms and Molecules._
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