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MCQ Questions for class 8 Science Synthetic fibres and plastics

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Below is the Quiz for class 8 Science chapter Synthetic fibres and plastics. You can Tap on the Start Quiz to begin playing the MCQs.

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Total Questions: 10

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Q1. What are synthetic fibres?

  1. The fibres made of chemicals
  2. The fibres grown naturally
  3. The fibres that are not used for making clothes
  4. All of the above
Answer: The fibres made of chemicals

Q2. What are natural fibres?

  1. The fibres found in oceans
  2. The fibres that are grown in fields
  3. The fibres that are not used for making clothes
  4. All of the above
Answer: The fibres that are grown in fields

Q3. What are the advantages of plastics?

  1. Plastic is non-reactive
  2. Plastic is light
  3. Plastic is strong and durable
  4. All of the above
Answer: All of the above

Q4. What are the disadvantages of plastics?

  1. Plastics causes soil pollution
  2. Plastics are non-biodegradable
  3. It causes air pollution upon burning
  4. All of the above
Answer: All of the above

Q5. Rayon is different from synthetic fibres because

  1. It has a silk-like appearance
  2. It is obtained from wood pulp
  3. Its fibres can also be woven like those of natural fibres
  4. All of the above
Answer: It is obtained from wood pulp

Q6. Synthetic fibres are synthesized from raw materials called ________.

  1. Petrochemical
  2. Seeds
  3. Water
  4. Soil
Answer: Petrochemical

Q7. What are polymers?

  1. Small particles of soil
  2. Small units of chemical substance joined together
  3. Both A and B
  4. None of the above
Answer: Small units of chemical substance joined together

Q8. What is artificial silk?

  1. Polyester
  2. Acrylic
  3. Nylon
  4. Rayon is called artificial silk
Answer: Rayon is called artificial silk

Q9. What is biodegradable?

  1. The material that get naturally decomposed
  2. The material that do not get decomposed
  3. The materials that can be recycled
  4. All of the above
Answer: The material that get naturally decomposed

Q10. What is non-biodegradable?

  1. The material that get naturally decomposed
  2. The material that do not get decomposed
  3. The materials that can be recycled
  4. None of the above
Answer: The material that do not get decomposed

Q11. What is thermoplastic?

  1. It gets deformed easily
  2. It can bent easily on heating
  3. Polythene and PVC are examples of thermoplastic
  4. All of the above
Answer: All of the above

Q12. What is thermosetting plastic?

  1. It can be deformed only once
  2. It cannot be deformed multiple times
  3. Bakelite and melamine are examples of thermosetting plastic
  4. All of the above
Answer: All of the above