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Question

According to Dalton's atomic theory, ___ is the smallest indivisible particle in a matter.

A
electron
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B
molecule
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C
compound
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D
atom
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Solution

The correct option is D atom
In 1808, John Dalton, an english scientist, proposed a theory about atom.

According to Dalton atomic theory

Matter is composed of tiny indivisible particles called atoms.
Atoms can neither be created nor be destroyed.
Atoms of same element are identical.
Atoms combine in a whole number ratio to form molecules.


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