Class 7 Science MCQs - Chapter 2
Atoms Molecules and Ions Multiple Choice Questions (MCQ) PDF Download - 2
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The MCQs: "O3" is a chemical formula of; "Atoms Molecules and Ions" App (Android, iOS) with answers: Oxides; Oxygen; Ozone; Acid rain; to learn homeschool online courses. Practice Chemical Formulae of Molecular Element and Compound MCQ Questions, download Apple e-Book (Free Sample) for online degree programs.
Atoms Molecules and Ions MCQs with Answers PDF Download: Quiz 2
"O3" is a chemical formula of
- oxygen
- oxides
- ozone
- acid rain
Ammonia molecule contains one nitrogen atom and three atoms of
- hydrogen
- helium
- nitrogen
- carbon
As compare to hydrogen atom, helium atom is
- very small
- very massive
- medium in mass fraction
- same in volume
The major part of an atom is
- empty
- filled
- charged
- covered
Rutherford's Model explains that atom has a nucleus which is surrounded by
- protons
- electrons
- neutrons
- nuclear energy
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