Question

. The atomic theory of matter was proposed by: *

(a) Chadwick

(b) Lavoisier

(c) Proust

(d) John Dalton

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Answer 1

Answer:

d) John Dalton

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Answer 2

11th/Chemistry

Mole concept

Answer :

The atomic theory of matter was proposed by John Dalton.

★ Dalton's atomic theory :

• Matter consists of indivisible atoms.
• All the atoms of a given element have identical properties including identical mass$.$
• Atoms of different elements differ in mass.
• Compounds are formed when atoms of different elements combine in a fixed ratio.
• Chemical reactions involve reorganisation of atoms. These are neither created nor destroyed in a chemical reaction.

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