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Question

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


A

law of constant proportion

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B

law of conservation of mass

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C

Both law of conservation of mass and constant proportion.

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D

Avagadro law

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Solution

The correct option is C

Both law of conservation of mass and constant proportion.


Daltons' atomic theory was based on the laws of chemical combinations i.e., law of conservation of mass and the law of definite proportions. The two postulates which supports the law of combinations are:

  • Atoms combine in the ratio of small whole numbers to form compounds.
  • Atoms are indivisible particles, which cannot be created or destroyed in a chemical reaction

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