Sample 1Easy
The law stating that a given compound always contains exactly the same proportion of elements by weight was given by
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The answer is B.
The law of definite proportions was given by the French chemist Joseph Proust. He found that samples of cupric carbonate, natural and synthetic, had the same composition of copper, carbon and oxygen.
- A.
Dalton gave the law of multiple proportions and the atomic theory.
- C.
Gay Lussac gave the law of gaseous volumes.
- D.
Lavoisier gave the law of conservation of mass.
NCERT: Class 11 Chemistry, Unit 1 (Some Basic Concepts of Chemistry), Laws of Chemical Combinations: Law of Definite Proportions