Class 8 Science Chapter 4 Materials Metals And Non Metals Quiz 3 (25 MCQs)

Quiz Instructions

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1. What would be the BEST title for this list:luster, ductility, conductivity?
2. Which of the following is not a property of metals?
3. Sodium and potassium are ..... and they are .....
4. The property by which metals can be beaten into sheets is known as .....
5. Mr. Devers is examining a pale, yellow, brittle solid, with no shine. The sample is Most Likely a-
6. Define:Malleability
7. Ions and Molecules are formed from .....
8. The sulphuric acid turns blue litmus paper into-
9. Metals like zinc and aluminium react with sodium hydroxide to produce ..... gas.
10. Which of the following property is not responsible for copper to be used as electrical conduction wires?
11. Which of these non metals is used for water purification?
12. 9) They are not sonorous and are poorconductors of heat and electricity. Thesematerials are called
13. Boron is
14. Which of the following describes why non metals are essential to humans?
15. When sulphur dioxide is dissolved in water sulphric acid is formed
16. Which element can displace copper from the copper sulphate solution?
17. Solids at room temperature
18. Silver is the most reactive Metal
19. What is the property that makes metals shine called?
20. Carries heat or electiricity
21. 5) Metals are ..... conductors of heat and .....
22. Metal + Acid = ..... + Hydrogen
23. When sulphur reacts with oxygen, the sulphur oxide formed is ..... in nature.
24. When zinc reacts with dilute sulphuric acid, a salt is formed with the release of a gas. The gas produced during this puts off a burning candle with a pop sound. The gas evolved during this reaction is:
25. Examples of non-metals.