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Chemistry Easy CSS Uploaded: 04 Sep 2026

One mole of any substance contains how many particles?

  • A 3.011 × 10^23
  • B 6.022 × 10^22
  • C 6.022 × 10^23
  • D 1.204 × 10^24
Correct Answer: Option C — 6.022 × 10^23
Explanation:
Avogadro's number, 6.022 × 10^23, defines the number of particles (atoms, molecules, or ions) present in one mole of any substance, forming the fundamental basis for stoichiometric calculations in chemistry.
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