Question

Which of the following is *NOT* a correct postulate of Daltons theory? a) Atoms of different elements have different sizes and masses. b) Atoms of different elements combine together in a simple whole number ratio. c) Atoms of different elements combine to form single compound. d) Fractions of atoms cannot take part in a reaction.

Answer 1

Answer:

ANSWER

Main assumptions or postulates of Dalton are :

All matter consists of indivisible particles called atoms.

Atoms of the same element are similar in shape and mass but differ from the atoms of other elements.

Atoms cannot be created or destroyed.

Atoms of different elements may combine with each other in a fixed, simple, whole number ratio to form compound atoms.

Atoms of the same element can combine in more than one ratio to form two or more compounds.

Atoms are the smallest unit of matter that can take part in a chemical reaction.

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