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Mohan Batra
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Asked: 2025-02-03T11:32:30+00:00 In:

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.

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Poll Results

0%(a) (i), (ii) and (iii)
100%(b) (i), (iii) and (iv) ( 1 voter )
0% (c) (ii), (iii) and (iv)
0%(d) (i), (ii) and (iv)
Based On 1 Vote

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The correct answer is (d)(i), (ii) and (iv).
Dalton’s atomic theory successfully explained:
Law of Conservation of Mass(i) – Atoms are neither created nor destroyed in a chemical reaction.
Law of Constant Composition(ii) – A compound always contains the same elements in fixed proportions.
Law of Multiple Proportions(iv) – When two elements form multiple compounds, their masses combine in simple whole-number ratios.
However, Law of Radioactivity(iii) was discovered later and is not explained by Dalton’s theory.
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