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Question


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


Options:
A .   number of neutrons
B .   valency
C .   atomic mass
D .   atomic size
Answer: Option B
:
B
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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