This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 4 Materials Metals And Non Metals ā Quiz 3 š Homepage š Download PDF Books š Premium PDF Books Class 8 Science Chapter 4 Materials Metals And Non Metals Quiz 3 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What would be the BEST title for this list:luster, ductility, conductivity? A) Chemical properties. B) Physical properties. C) Reactive properties. D) Observable properties. Show Answer Correct Answer: B) Physical properties. 2. Which of the following is not a property of metals? A) Malleable. B) Bad Conductors of heat. C) Good Conductors of Electricity. D) Dukes. Show Answer Correct Answer: B) Bad Conductors of heat. 3. Sodium and potassium are ..... and they are ..... A) Non Metals, Soft. B) Non Metals, Hard. C) Metals, Hard. D) Metals, Soft. Show Answer Correct Answer: D) Metals, Soft. 4. The property by which metals can be beaten into sheets is known as ..... A) Ductility. B) Sonority. C) Lusture. D) Malleability. Show Answer Correct Answer: D) Malleability. 5. Mr. Devers is examining a pale, yellow, brittle solid, with no shine. The sample is Most Likely a- A) Non-metal. B) Metal. C) Neither metal, non-metal, or metalloid. D) Metalloid. Show Answer Correct Answer: A) Non-metal. 6. Define:Malleability A) The property of metals by which it can be drawn into wires. B) The property of metals by which they can be beaten into thin sheets. C) Produce ringing sounds. D) All of the above. Show Answer Correct Answer: B) The property of metals by which they can be beaten into thin sheets. 7. Ions and Molecules are formed from ..... A) Hydrogel. B) Atom. C) Matterhorns. D) Heat. Show Answer Correct Answer: B) Atom. 8. The sulphuric acid turns blue litmus paper into- A) Red. B) Green. C) Yellow. D) Dark bluie. Show Answer Correct Answer: A) Red. 9. Metals like zinc and aluminium react with sodium hydroxide to produce ..... gas. A) Hydrogen. B) Hydrogen sulphide. C) Oxygen. D) Sulphur dioxide. Show Answer Correct Answer: A) Hydrogen. 10. Which of the following property is not responsible for copper to be used as electrical conduction wires? A) Ductility. B) Colour. C) Good conductor of electricity. D) It is solid. Show Answer Correct Answer: B) Colour. 11. Which of these non metals is used for water purification? A) Iodine. B) Chlorine. C) Carbon. D) Bromine. Show Answer Correct Answer: B) Chlorine. 12. 9) They are not sonorous and are poorconductors of heat and electricity. Thesematerials are called A) Non-metals. B) Metals. C) Both of these. D) None of these. Show Answer Correct Answer: A) Non-metals. 13. Boron is A) Metal. B) Metalloid. C) Non-metal. D) None of these. Show Answer Correct Answer: B) Metalloid. 14. Which of the following describes why non metals are essential to humans? A) They are used in the purification of water. B) They are major components of fertilizers for plants to grow. C) They form gases in the atmosphere that are required by humans to breathe. D) All the above. Show Answer Correct Answer: D) All the above. 15. When sulphur dioxide is dissolved in water sulphric acid is formed A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 16. Which element can displace copper from the copper sulphate solution? A) Iron. B) Platinum. C) Gold. D) Silver. Show Answer Correct Answer: A) Iron. 17. Solids at room temperature A) Metals. B) Nonmetals. C) All the above. D) None of the above. Show Answer Correct Answer: A) Metals. 18. Silver is the most reactive Metal A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 19. What is the property that makes metals shine called? A) Malleability. B) Ductility. C) Sonorous. D) Lustre. Show Answer Correct Answer: D) Lustre. 20. Carries heat or electiricity A) Insulator. B) Conductor. C) Lustre. D) Brittle. Show Answer Correct Answer: B) Conductor. 21. 5) Metals are ..... conductors of heat and ..... A) Good, electricity. B) Poor, electricity. C) Poor, no electricity. D) None of the above. Show Answer Correct Answer: A) Good, electricity. 22. Metal + Acid = ..... + Hydrogen A) Sodium Chloride. B) Magnesium Sulphate. C) Salt. D) Iron Chloride. Show Answer Correct Answer: C) Salt. 23. When sulphur reacts with oxygen, the sulphur oxide formed is ..... in nature. A) Basic. B) Acidic. C) Neutral. D) None of these. Show Answer Correct Answer: B) Acidic. 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: A) Sulphur dioxide. B) Oxygen. C) Hydrogen. D) Hydrogen sulphide. Show Answer Correct Answer: C) Hydrogen. 25. Examples of non-metals. A) Carbon. B) Oxygen. C) Sulphur. D) All of these. 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