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MCQ Questions for class 9 Chemistry Is matter around us pure?

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Below is the Quiz for class 9 Chemistry chapter Is matter around us pure?. 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 is a mixture?

  1. It constitute more than one kind of pure form of matter
  2. It constitute one pure form of matter
  3. It constitute of impure substances
  4. All of the above
Answer: It constitute more than one kind of pure form of matter

Q2. What is a solution?

  1. It is a homogenous mixture of two or more substances
  2. It is a heterogeneous mixture of two or more substances
  3. Both A and B
  4. None of the above
Answer: It is a homogenous mixture of two or more substances

Q3. What are the properties of a solution?

  1. It is a homogenous mixture of two or more substances
  2. It do not scatter the beam of light
  3. The particles cannot be separated by filtration
  4. All of the above
Answer: All of the above

Q4. What is a suspension?

  1. It is a homogenous mixture of two or more substances
  2. It is a heterogeneous mixture of two or more substances
  3. Both A and B
  4. None of the above
Answer: It is a heterogeneous mixture of two or more substances

Q5. What are the properties of a suspension?

  1. It is a heterogeneous mixture of two or more substances
  2. The size of particle is more than 1nm
  3. It can scatter the beam of light
  4. All of the above
Answer: All of the above

Q6. What is colloidal solution?

  1. It seems to be a homogenous mixture but it is actually a heterogeneous mixture
  2. It is a heterogeneous mixture of two or more substances
  3. It is a homogeneous mixture
  4. All of the above
Answer: It seems to be a homogenous mixture but it is actually a heterogeneous mixture

Q7. What are the properties of colloidal solution?

  1. It seems to be a homogenous mixture but it is actually a heterogeneous mixture
  2. It can scatter beam of light
  3. Its particles are quite stable and do not settle when left undisturbed
  4. All of the above
Answer: All of the above

Q8. Which method is used to separate the cream from the milk?

  1. Winnowing
  2. Evaporation
  3. Hand picking
  4. Centrifugation
Answer: Centrifugation

Q9. How to separate the two immiscible liquids?

  1. Centrifugation
  2. Using funnel
  3. Sublimation
  4. Evaporation
Answer: Using funnel

Q10. What are the applications of the chromatography?

  1. To separate the colours in dye
  2. To separate the pigments from the natural colours
  3. To separate the drugs from the blood
  4. All of the above
Answer: All of the above

Q11. How can we obtain pure copper sulphate from an impure sample?

  1. Centrifugation
  2. By hand picking method
  3. By crystallisation method
  4. None of the above
Answer: By crystallisation method

Q12. What is an element?

  1. It is the smallest substance in the universe
  2. It is formed by the combination of two or more elements
  3. The substance made from the combination of one type of molecules
  4. None of the above
Answer: The substance made from the combination of one type of molecules

Q13. What is compound?

  1. It forms when two or more elements are chemically combined
  2. It is the smallest unit of a substance
  3. Both A and B
  4. None of the above
Answer: It forms when two or more elements are chemically combined