Physical and Chemical Changes Study App | Class 7 Science Quiz e-Book PDF
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Class 7 Science MCQs – Practice Test 7 (Chapter 17)

Physical and Chemical Changes Quiz with Answers PDF Download – Test 7

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Learn Physical and chemical changes Quiz Questions and Answers PDF for science competency learning systems. Download the Physical and Chemical Changes Quiz PDF e-Book, Ch. 17-7 to learn Class 7 Science Course. Solve Polyvinyl Chloride MCQs PDF, Physical and Chemical Changes Quiz Questions and Answers for science remote academic pathways. Download the Physical and Chemical Changes Study App: Free Class 7 Science Quiz App to learn polyvinyl chloride, physical changes, magnesium and oxygen, ammonia and fertilizers, chemical changes test prep for science competency learning systems.

Free Physical and Chemical Changes Quiz App Download (iOS & Android): When particles cool down, energy changes; MCQ with answers: from kinetic to potential, from kinetic to heat, from potential to kinetic, and from thermal to potential. Study Polyvinyl Chloride MCQ Questions, download Google Book (Free Chapter) to succeed remote learning.

Physical and Chemical Changes Quiz – Practice Test 7 PDF Download

MCQ 31: To make PVC, molecules of vinyl chloride are:

  1. condensed
  2. further heated
  3. treated with ammonia
  4. gathered to form a chain

MCQ 32: When particles cool down, energy changes:

  1. from kinetic to heat
  2. from kinetic to potential
  3. from potential to kinetic
  4. from thermal to potential

MCQ 33: The color of magnesium oxide is:

  1. white
  2. blue
  3. grey
  4. pink

MCQ 34: Ammonia fertilizers are made by two components, they are:

  1. ammonia and hydrogen
  2. ammonia and nitric acid
  3. nitrogen and hydrogen
  4. nitrogen and water

MCQ 35: During chemical reaction, energy is:

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

Physical and Chemical Changes Quiz App & e-Book – Class 7 Science Study Material

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