Q. Avogadro's number represents:

एवोगैड्रो की संख्या दर्शाती है:

A
The number of atoms in 1 g of hydrogen
1 ग्राम हाइड्रोजन में परमाणुओं की संख्या
B
The number of molecules in 22.4 L of any gas at STP
एसटीपी पर किसी भी गैस के 22.4 L में अणुओं की संख्या
C
The number of particles in 1 mole of any substance
किसी भी पदार्थ के 1 मोल में कणों की संख्या
D
The mass of one atom of carbon-12
कार्बन-12 के एक परमाणु का द्रव्यमान

Explanation

Avogadro's number (6.022 × 10²³) represents:

  • The number of particles (atoms, molecules, ions, etc.) in exactly 1 mole of any substance
  • This is a fundamental constant in chemistry

Other options are incorrect:

  • 1 g of hydrogen contains fewer particles
  • 22.4 L at STP is the molar volume, not Avogadro's number
  • Mass of carbon-12 atom is different (atomic mass unit definition)

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