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प्रश्न
State the contributions of John Dalton – towards the development of Chemistry.
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उत्तर
John Dalton
1. He compiled his theory in 1803 known as Dalton’s atomic theory.
2. The main postulates of Dalton’s atomic theory are that “Matter consists of particles called atoms, which are indivisible and cannot be created or destroyed.”
3. The theory was later contradicted in certain aspects by the Modem atomic theory
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