MCQ Science Curiosity Chapter 8 Class 8 CBSE Board

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Nature of Matter: Elements, Compounds, and Mixtures

1. What is a mixture characterized by?

Question 1 of 20

2. What are the individual substances in a mixture called?

Question 2 of 20

3. Which of the following is an example of a non-uniform mixture?

Question 3 of 20

4. Which mixture has components that cannot be seen separately even with a microscope?

Question 4 of 20

5. What is stainless steel classified as?

Question 5 of 20

6. Which of the following is an alloy mentioned in the chapter?

Question 6 of 20

7. What is the ancient Indian term for a mixture of two or more metals?

Question 7 of 20

8. Which alloy was used in ancient India to improve digestion and boost immunity?

Question 8 of 20

9. What type of mixture is air?

Question 9 of 20

10. Which gas in air is essential for most living beings to stay alive?

Question 10 of 20

11. What happens when warm air touches a cool surface?

Question 11 of 20

12. What does lime water turn into when exposed to carbon dioxide?

Question 12 of 20

13. What is observed when calcium oxide is added to water?

Question 13 of 20

14. What does Activity 8.1 demonstrate?

Question 14 of 20

15. What is observed when a black sheet of paper is left near an open window?

Question 15 of 20

16. What are dust particles in air considered?

Question 16 of 20

17. What is the Air Quality Index (AQI) used for?

Question 17 of 20

18. Which of the following is a mixture of gas and liquid?

Question 18 of 20

19. Which mixture contains solid and liquid components?

Question 19 of 20

20. What is the purpose of separating mixtures in science?

Question 20 of 20


 

 

 

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