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Question 600089
JEE Chemistry · Hard

Mole Concept and Stoichiometry: Mole Concept MCQ

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Mole ConceptHardQuestion 600089

Question

At constant T and P, equal volumes of all gases contain equal numbers of molecules. This is:
  1. A
    Dalton's law
  2. B
    Avogadro's hypothesis
    Correct
  3. C
    Graham's law
  4. D
    Boyle's law

Correct answer

Avogadro's hypothesis

Explanation

Avogadro's hypothesis (1811): equal volumes of all ideal gases at the same T and P contain the same number of molecules. This leads directly to the molar volume concept.

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