Atoms Molecules and Ions Multiple Choice Questions 2 PDF Download

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MCQs on Atoms Molecules and Ions Quiz PDF Download Worksheets 2

MCQ. "O3" is a chemical formula of

  1. oxygen
  2. oxides
  3. ozone
  4. acid rain

C

MCQ. Ammonia molecule contains one nitrogen atom and three atoms of

  1. hydrogen
  2. helium
  3. nitrogen
  4. carbon

A

MCQ. As compare to hydrogen atom, helium atom is

  1. very small
  2. very massive
  3. medium in mass fraction
  4. same in volume

B

MCQ. Major part of an atom is

  1. empty
  2. filled
  3. charged
  4. covered

A

MCQ. Rutherford's Model explains that atom has a nucleus which is surrounded by

  1. protons
  2. electrons
  3. neutrons
  4. nuclear energy

B