What is the correct statement related to Avogadro?

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Question

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SSC CGL 2022 Tier-I Official Paper (Held On : 12 Dec 2022 Shift 1)

Answer 1

Correct Answer Avogadro made a distinction between atoms and molecules.

Key PointsAvogadro is a term that refers to two related concepts in chemistry:

Avogadro's number:

This is a fundamental constant in chemistry that represents the number of atoms or molecules in one mole of a substance. (Option 4 is correct)
Its value is approximately 6.022 x 10^²³, and it is denoted by the symbol "N_A".
Avogadro's number is a key concept in stoichiometry.
The branch of chemistry deals with the quantitative relationships between reactants and products in chemical reactions.

Amedeo Avogadro:

He is best known for his contributions to the development of the mole concept in chemistry.
Avogadro proposed that equal volumes of gases at the same temperature and pressure contain the same number of particles, which led to the development of Avogadro's law.
He also proposed the hypothesis that the same volume of different gases, at the same temperature and pressure, contains an equal number of molecules. This hypothesis became known as Avogadro's principle.
Avogadro's contributions to the development of the mole concept and the understanding of the behavior of gases have had a profound impact on the field of chemistry.