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MCQs on Chemical Formulas PDF Download eBook
MCQ: The formula that shows the number and kind of atoms which a substance of a molecule contained, is known as
- chemical formula
- atomic formula
- compound formula
- molecular formula
A
MCQ: The smallest particle of carbon dioxide consists of
- two atoms
- three atoms
- four atoms
- five atoms
B
MCQ: To date, scientists have made about 26 millions
- elements
- compounds
- alkalis
- alkanes
B
MCQ: The smallest particle of water is
- element
- atom
- molecule
- neutron
C
MCQ: Oxygen is a diatomic gas so its chemical formula is
- O2
- O2
- O
- Ox
B