Simple Chemical Reactions Multiple Choice Questions and Answers 4 PDF Download

Learn simple chemical reactions multiple choice questions, grade 7 science online test 4 for elementary school degree online courses, distance learning for exam prep. Practice physical and chemical change multiple choice questions (MCQs), simple chemical reactions quiz questions and answers for science class for 7th grade science homework help.

Study elementary school science multiple choice questions (MCQs): process of breaking down of any substance into smaller substances by heating, is called, for free online courses with choices evaporation, decomposition, thermal decomposition, and melting, physical and chemical change quiz for online e-learning with elementary, secondary and high school education with online student portal. Free science study guide for online learning physical and chemical change quiz questions to attempt multiple choice questions based test.

MCQs on Simple Chemical Reactions Worksheets 4 Quiz PDF Download

MCQ: Process of breaking down of any substance into smaller substances by heating, is called

  1. decomposition
  2. evaporation
  3. thermal decomposition
  4. melting

C

MCQ: Zinc salt reacts with dilute shulphuric acid to form zinc salt and

  1. hydrogen
  2. oxygen
  3. carbon dioxide
  4. carbon monoxide

A

MCQ: Natural gas is made up of compound

  1. carbon
  2. methane
  3. ethene
  4. ethane

B

MCQ: Power machines in factories and vehicles are examples of

  1. combustion
  2. thermal decomposition
  3. evaporation
  4. combination

A

MCQ: Natural gas is more efficient and produces less

  1. pollution
  2. heat
  3. reaction
  4. less evaporation

A