Atoms Molecules and Ions Multiple Choice Questions and Answers 2 PDF Download

Learn atoms molecules and ions MCQs, grade 7 science test 2 for online learning courses and test prep. Chemical formulae of molecular element and compound multiple choice questions (MCQs), atoms molecules and ions quiz questions and answers include science worksheets for science help for online contests.

Science multiple choice questions (MCQ): "o3" is a chemical formula of with options oxides, oxygen, ozone and acid rain, chemical formulae of molecular element and compound quiz with online competency based interview questions and answers to answer during teachers jobs' tests. Free science study guide to learn chemical formulae of molecular element and compound quiz to attempt multiple choice questions based test.

MCQs on Atoms Molecules and Ions Worksheets 2 Quiz PDF Download

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