We have given these Important Questions for Class 10 Science Chapter 3 Metals and Non-Metals to solve different types of questions in the exam. Previous Year Questions & Important Questions of Metals and Non-Metals Class 10 Science Chapter 3 will help the students to score good marks in the board examination. Certainly! Here are 30 short-type questions based on the topics of Metals and Non-Metals for Class IX CBSE board, along with their answers:
1. Q: Define a metal.
A: Metals are elements that are generally solid at room temperature, have metallic luster, good conductors of heat and electricity, and are malleable and ductile.
2. Q: Name a metal that is liquid at room temperature.
A: Mercury (Hg)
3. Q: What is the basic characteristic property of metals?
A: The ability to conduct heat and electricity.
4. Q: Give an example of a metal that is a poor conductor of electricity.
A: Lead (Pb)
5. Q: Define a non-metal.
A: Non-metals are elements that are usually gases or solids at room temperature, have no metallic luster, and are poor conductors of heat and electricity.
6. Q: Name a non-metal that is essential for respiration.
A: Oxygen (O2)
7. Q: Which non-metal is used in making fertilizers?
A: Nitrogen (N2)
8. Q: What is the product formed when a metal reacts with an acid?
A: Salt and hydrogen gas.
9. Q: What happens when a metal reacts with oxygen?
A: The metal forms metal oxide.
10. Q: Which gas is evolved when a metal reacts with dilute hydrochloric acid?
A: Hydrogen gas (H2)
11. Q: Which metal is used in galvanization to prevent corrosion?
A: Zinc (Zn)
12. Q: Name the metal that is a good conductor of electricity and is used in electrical wires.
A: Copper (Cu)
13. Q: What happens when a metal displaces another metal from its salt solution?
A: The displaced metal forms a new salt solution, and the original metal is separated.
14. Q: Why do metals not displace hydrogen from acids that are less reactive than metals?
A: Metals are more reactive than hydrogen, so they displace hydrogen from acids.
15. Q: What are metalloids?
A: Metalloids are elements that have properties of both metals and non-metals. They are also called semi-metals.
16. Q: Give an example of a metalloid.
A: Silicon (Si)
17. Q: Define the term 'corrosion.'
A: Corrosion is the process of gradual deterioration of metals due to chemical reactions with their environment, usually involving oxygen and moisture.
18. Q: How can corrosion of metals be prevented?
A: By using protective coatings like painting, galvanizing, or using alloys that are less prone to corrosion.
19. Q: Name a metal that does not react with water or steam.
A: Gold (Au)
20. Q: What happens when a non-metal reacts with oxygen?
A: Non-metals form non-metallic oxides.
21. Q: What is the product formed when sulfur dioxide reacts with water?
A: Sulfurous acid (H2SO3)
22. Q: Name a non-metal that is used to disinfect water.
A: Chlorine (Cl2)
23. Q: Which non-metal is used in the manufacture of fertilizers?
A: Phosphorus (P)
24. Q: What is the general trend in the reactivity of metals in the reactivity series?
A: Metals become more reactive as we move down the reactivity series.
25. Q: Which metal is stored in kerosene to prevent its reaction with air and moisture?
A: Sodium (Na)
26. Q: Name the process used to convert impure metals into pure metals.
A: Electrolytic refining
27. Q: Why are metals used to make cooking utensils?
A: Metals are good conductors of heat, allowing even distribution of heat during cooking.
28. Q: What are the products formed when a metal carbonate reacts with an acid?
A: Salt, water, and carbon dioxide gas.
29. Q: Which metal is used in the production of coins?
A: Copper (Cu)
30. Q: Which non-metal is used in the production of fertilizers, explosives, and medicines?
A: Nitrogen (N2)
31. Q: Write the chemical equation for the reaction of zinc with hydrochloric acid.
A: Zn + 2HCl → ZnCl2 + H2
32. Q: What is the product formed when magnesium reacts with oxygen?
A: 2Mg + O2 → 2MgO
33. Q: Write the chemical equation for the reaction of iron with sulfuric acid.
A: Fe + H2SO4 → FeSO4 + H2
34. Q: When copper reacts with oxygen in the air, what is the product formed?
A: 2Cu + O2 → 2CuO
35. Q: What happens when silver nitrate solution is added to sodium chloride solution?
A: AgNO3 + NaCl → AgCl + NaNO3
36. Q: Write the chemical equation for the reaction of lead with hydrochloric acid.
A: Pb + 2HCl → PbCl2 + H2
37. Q: What is the product formed when carbon dioxide is passed through lime water?
A: Ca(OH)2 + CO2 → CaCO3 + H2O
38. Q: Write the chemical equation for the reaction of aluminum with hydrochloric acid.
A: 2Al + 6HCl → 2AlCl3 + 3H2
39. Q: When dilute hydrochloric acid reacts with calcium carbonate, what are the products formed?
A: CaCO3 + 2HCl → CaCl2 + CO2 + H2O
40. Q: Write the chemical equation for the reaction of copper oxide with sulfuric acid.
A: CuO + H2SO4 → CuSO4 + H2O
41. Q: What happens when sulfur dioxide gas is passed through water?
A: SO2 + H2O → H2SO3
42. Q: Write the chemical equation for the reaction of lead with oxygen.
A: 2Pb + O2 → 2PbO
43. Q: What is the product formed when copper reacts with nitric acid?
A: 3Cu + 8HNO3 → 3Cu(NO3)2 + 2NO + 4H2O
44. Q: Write the chemical equation for the reaction of zinc oxide with sulfuric acid.
A: ZnO + H2SO4 → ZnSO4 + H2O
45. Q: What happens when a metal reacts with an acid?
A: Metal + Acid → Salt + Hydrogen gas
46. Q: Write the chemical equation for the reaction of iron with oxygen.
A: 4Fe + 3O2 → 2Fe2O3
47. Q: What is the product formed when magnesium reacts with hydrochloric acid?
A: Mg + 2HCl → MgCl2 + H2
48. Q: Write the chemical equation for the reaction of calcium with water.
A: Ca + 2H2O → Ca(OH)2 + H2
49. Q: What happens when a metal carbonate reacts with an acid?
A: Metal carbonate + Acid → Salt + Water + Carbon dioxide
50. Q: Write the chemical equation for the reaction of aluminum with oxygen.
A: 4Al + 3O2 → 2Al2O3
51. Q: What is the product formed when lead reacts with hydrochloric acid?
A: Pb + 2HCl → PbCl2 + H2
52. Q: Write the chemical equation for the reaction of zinc with sulfuric acid.
A: Zn + H2SO4 → ZnSO4 + H2
53. Q: What happens when a non-metal reacts with oxygen?
A: Non-metal + Oxygen → Non-metallic oxide
54. Q: Write the chemical equation for the reaction of sodium with water.
A: 2Na + 2H2O → 2NaOH + H2
55. Q: What is the product formed when sulfur dioxide reacts with water?
A: SO2 + H2O → H2SO3
56. Q: Write the chemical equation for the reaction of copper with sulfuric acid.
A: Cu + 2H2SO4 → CuSO4 + SO2 + 2H2O
57. Q: What happens when a metal reacts with water?
A: Metal + Water → Metal hydroxide + Hydrogen gas
58. Q: Write the chemical equation for the reaction of lead with nitric acid.
A: 3Pb + 8HNO3 → 3Pb(NO3)2 + 2NO + 4H2O
59. Q: What is the product formed when carbon reacts with oxygen?
A: C + O2 → CO2
60. Q: Write the chemical equation for the reaction of sodium with oxygen.
A: 4Na + O2 → 2Na2O
Remember to revise the properties, reactions, and uses of metals and non-metals. These short questions cover various aspects of the topic, helping you to reinforce your understanding. Best of luck with your studies!
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