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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 isdetermined bythe number of electrons an atom can accept, donate or share.

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