Q4 of 203 Page 128

Name the scientist who gave atomic theory of matter.

Atomic theory of matter was given by John Dalton. It was the first complete attempt to describe all the matter in the form of atoms and their properties.


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2

Name the scientist who gave:

(a) law of conservation of mass


(b) law of constant proportions.

 3

Name the law of chemical combination:

(a) which was given by Lavoisier.


(b) which was given by Proust.

 5

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

 6

Which part of the Dalton’s atomic theory came from the law of constant proportions given by Proust?