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1. Which is a metalloid?

2. Compound is—

3. Which statement is true about compounds?

4. Water is a—

5. Iron sulphide (FeS) formed by heating iron and sulphur is a—

6. A mixture of iron filings and sulphur can be separated by—

7. Mixture shows—

8. Constituents of a compound can be separated by—

9. Which process separates salt from water?

10. Ammonium chloride can be separated from salt by—

11. Tea leaves are separated from tea by—

12. Butter is separated from curd by—

13. Different pigments from flower extract are separated by—

14. Oil and water can be separated by—

15. Which of the following is a homogeneous mixture?

16. Which material is not a pure substance?

17. Which mixture shows visible settling of particles?

18. The colour of a colloid appears uniform because—

19. Which of these will show Tyndall effect?

20. Majority of naturally occurring elements are—