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Chemical Changes MCQs PDF Download – Prep Test

MCQ 1: Respiration is a:

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

MCQ 2: During chemical reaction, energy is:

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

MCQ 3: In chemical reactions, energy is absorbed or released in the form of:

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

MCQ 4: Chemical reactions are:

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

MCQ 5: One or more new substances are formed due to:

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

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