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Question

What are the merits of Dalton's atomic theory?
  1. Explains laws of chemical combination
  2. Explains the law of conservation of mass
  3. Both A and B
  4. Atoms can not be rearranged, combined or separated in a chemical reaction.

A
Both A and B
B
Explains the law of conservation of mass
C
Atoms can not be rearranged, combined or separated in a chemical reaction.
D
Explains laws of chemical combination
Solution
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The atomic theory explains the laws of chemical combination (the Law of Constant Composition and the Law of Multiple Proportions) Dalton was the first person to recognize a workable distinction between the fundamental particle of an element (atom) and that of a compound (molecule).

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One of the statements of Dalton's atomic theory is given below "compounds are formed when atoms of different elements combine in a fixed ratio. " Which law of chemical combination is not related to this statement?
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