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  • Dalton’s atomic theory successfully explained (i) Law of conservation of mass (ii) Law of constant composition (iii) Law of radioactivity (iv) Law of multiple proportion (a) (i), (ii) and (iii) (b) (i), (iii) and (iv)

Dalton’s atomic theory successfully explained

(i) Law of conservation of mass

(ii) Law of constant composition

(iii) Law of radioactivity

(iv) Law of multiple proportion

(a) (i), (ii) and (iii)

(b) (i), (iii) and (iv)

(c) (ii), (iii) and (iv)

(d) (i), (ii) and (iv)

Answers (1)

Answer: D

The Dalton’s atomic theory explains the laws of chemical combination (the Law of Constant Composition and the Law of Multiple Proportions). Dalton was the first person to recognize a workable distinction between the fundamental particle of an element (atom) and that of a compound (molecule). Dalton’s gave us ‘atoms cannot be created or destroyed.’

His theory gave us nothing on radioactivity.

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