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Is Matter Around Us Pure? - Quiz with 25 MCQs

Test your knowledge with 25 multiple-choice questions on pure substances, mixtures, solutions, colloids and more from 'Is Matter Around Us Pure?'
Is Matter Around Us Pure? - Quiz with 25 MCQs Is Matter Around Us Pure? - Quiz with 25 MCQs

Is Matter Around Us Pure? - 25 MCQs Quiz

Test your understanding of the chapter "Is Matter Around Us Pure?" with these 25 multiple-choice questions covering pure substances, mixtures, solutions, colloids, suspensions, and more. Check your answers by clicking the "Show Results" button at the bottom.

Tip: These questions are based on NCERT Class 9 Science Chapter 2 content.

Multiple Choice Questions

1. What defines a pure substance scientifically?
2. Which of these is NOT a pure substance?
3. What type of mixture is salt water?
4. The Tyndall effect is observed in:
5. Which of these is an example of a solid-solid mixture?
6. In a solution of sugar in water, the solute is:
7. What happens when a saturated solution is cooled?
8. Which of these is NOT a property of a solution?
9. Brass is an example of:
10. The concentration of a solution containing 40g salt in 320g water is:
11. Which of these is a chemical change?
12. What is the main difference between compounds and mixtures?
13. Which metal is liquid at room temperature?
14. Which of these is NOT a property of non-metals?
15. What happens when iron filings and sulphur powder are heated strongly?
16. Which of these is an example of a gas-gas solution?
17. Milk of magnesia is an example of:
18. Which separation technique would you use to separate iron pins from sand?
19. What is the dispersed phase in milk?
20. Which of these is a metalloid?
21. The solubility of which salt changes significantly with temperature?
22. Which of these is NOT a colloidal solution?
23. What percentage of air is nitrogen?
24. Which of these is a physical change?
25. Which method can separate colloidal particles?
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