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Which law states that a chemical compound always contains same elements in same proportion?

Practice MCQ for SSC, UPSC, RRB Exams

A. Law of conservation of mass A.

B. Law of definite proportions B.

C. Law of multiple proportions C.

D. Avogadro's law D.

Correct Answer: B সঠিক উত্তর: B

Explanation ব্যাখ্যা

The Law of Definite Proportions (also called Proust’s Law) states:
"A given chemical compound always contains its component elements in a fixed ratio by mass, and does not depend on its source or method of preparation."
Example: Water (H₂O) always contains hydrogen and oxygen in the mass ratio of 1:8, regardless of its source.

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Which law states that a chemical compound always contains same elements in same proportion?

Practice MCQ for SSC, UPSC, RRB Exams

Correct Answer: B সঠিক উত্তর: B

Explanation ব্যাখ্যা

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