The post IS MATTER AROUND US PURE contains questions about the chapter.

  1. Smoke and fog both are aerosols. In what way are they different?
  2. Why do we call sugar a pure substance?
  3. What are saturated and unsaturated solutions?
  4. Define a solution
  5. What is a suspension? Give its example and
  6. Define the concentration of a
  7. What is the Tyndall effect?
  8. What is the difference between True solutions and colloids?
  9. What are alloys? Why are alloys called a mixture?
  10. Write the characteristics of
  11. Define solute and
  12. What is solubility?
  13. Give properties of a true solution.
  14. Explain why particles of a colloidal solution do not settle down when left undisturbed, while in the case of a suspension they
  15. What is chromatography? Explain the process.
  16. n element is sonorous and highly Under which category would you classify this element? What other characteristics do you expect the element to possess?
  17. Why do we need to separate mixtures?
  18. How can we separate cream from milk?
  19. Based on the amount of solute in the given solution, how solutions are classified?
  20. What are aqueous solutions?
  21. What are non-aqueous solutions?
  22. When we open the cap of a cola drink (or any carbonated beverage), why does an excess of bubbles come out?
    • Fill in the blanks
    • A colloid is a ——— mixture and its components can be separated by the technique known as ———.
    • Ice, water, and water vapour look different and display different —— properties but they are ——— the
    • A mixture of chloroform and water taken in a separating funnel is mixed and left undisturbed for some The upper layer in the separating funnel will be of——— and the lower layer will be that of ———.
    • A mixture of two or more miscible liquids, for which the difference in the boiling points is less than 25 K can be separated by the process called———.



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