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Chapter 3 NCERT Class 9 Science SOLUTIONS

3. Which postulate of Dalton’s atomic theory is the result of the law of conservation of mass ?
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Question:

Which postulate of Dalton’s atomic theory is the result of the law of conservation of mass ?

Answer:

Atoms are indivisible smallest particles, which can neither be created nor be destroyed in a chemical reaction.

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(All Q's of this Chapter solved)
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