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Question

Chemical formula of a compound is determined on the basis of __________ of its constituents.

A
number of neutrons
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B
valency
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C
atomic mass
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D
atomic size
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Solution

The correct option is B valency
The number of atoms combining to form the molecule of a compound is determined by the valency of its constituent atoms or ions.

Valency is determined by the number of electrons an atom can accept, donate or share.

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