Simple Chemical Reactions Multiple Choice Questions and Answers 4 pdf eBooks Download

Learn simple chemical reactions MCQs, grade 7 science test 4, physical and chemical change multiple choice questions and answers. Physical and chemical change revision test has science worksheets, answer key with choices as evaporation, decomposition, thermal decomposition and melting of multiple choice questions (MCQ) with physical and chemical change quiz as the process of breaking down of any substance into smaller substances by heating, is called for competitive exam prep, viva interview questions. Free science study guide to practice physical and chemical change quiz to attempt multiple choice questions based test.

MCQs on Simple Chemical Reactions Quiz pdf Download Worksheets 4

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