Given below are few statements. Mark the statement which in…

Chemistry Some Basic Concepts of Chemistry Atomic, Molecular and Equivalent Masses Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

Given below are few statements. Mark the statement which in not correct.

Gram atomic mass of an element may be defined as the mass of Avogadro’s number of atoms.

The molecular mass of a diatomic elementary gas is twice its atomic mass.

Gay Lussac’s law of chemical combination is valid for all substances.

A pure compound has always a fixed proportion of masses of its constituents.

Text Solution

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The correct answer is:

Gay Lussac’s law is true only for gaseous substances.

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