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Chemical Changes MCQ Questions with Answers PDF Download eBook

Chemical changes Multiple Choice Questions (MCQ) to solve chemical changes quiz answers PDF worksheet, 7th grade science test for online courses. Practice physical and chemical changes Multiple Choice Questions and Answers (MCQs), "Chemical Changes" quiz questions PDF for online elementary school. Learn making plastics, polyvinyl chloride, solids liquids and gases, chemical changes test prep for virtual online school.

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MCQs on Chemical Changes PDF Download eBook

MCQ: Respiration is a

  1. physical process
  2. chemical process
  3. biological process
  4. temporary process

B

MCQ: During chemical reaction, energy is

  1. taken in
  2. given out
  3. given out or taken in
  4. transferred

C

MCQ: In chemical reactions, energy is absorbed or released in the form of

  1. sound
  2. light
  3. electricity
  4. heat

D

MCQ: Chemical reactions are

  1. reversible
  2. irreversible
  3. permanent
  4. temporary

B

MCQ: One or more new substances are formed due to

  1. physical change
  2. chemical change
  3. biological change
  4. state variation

B