9/CHEM/8/QB

Here’s a question bank based on the specified topics in Unit 8: Chemical Reactivity. The questions are divided into easy, moderate, and tough categories, with a total of 120 short questions and 10 long questions.


Short Questions (120)


Easy Questions (36)


1. What is a metal?


2. List two physical properties of metals.


3. Define electropositivity.


4. What are alkali metals?


5. Name one characteristic of alkaline earth metals.


6. What is the general trend of electropositivity in the periodic table?


7. How does ionization energy relate to electropositivity?


8. Give one use of sodium in daily life.


9. Name one non-metal.


10. What is the chemical formula of sodium chloride?


11. What do we call metals that do not react easily with other elements?


12. What is the significance of non-metals in biological systems?


13. Define a noble metal.


14. Name one property of noble metals.


15. What is the state of most metals at room temperature?


16. List two chemical properties of metals.


17. How do metals react with acids?


18. What is a characteristic reaction of metals with water?


19. What is the symbol for magnesium?


20. Name a property that distinguishes metals from non-metals.


21. What happens when sodium reacts with water?


22. What is the electron configuration of magnesium?


23. Define reactivity series.


24. Name two uses of calcium.


25. What is a characteristic of gold?


26. How does the reactivity of lithium compare to that of potassium?


27. Why are noble metals considered inert?


28. What is the chemical formula of calcium carbonate?


29. What do you understand by the term "metallic bond"?


30. How does sodium react with hydrogen?


31. What is the primary use of silver in industries?


32. List one important physical property of non-metals.


33. How do non-metals generally react with oxygen?


34. What is the result of the reaction between non-metals and metals?


35. Name a property of platinum.


36. How do alkaline earth metals react with water?


Moderate Questions (48)


37. Compare the physical properties of metals and non-metals.


38. Explain the electropositive character of metals with an example.


39. What is the role of metals in electrical conductivity?


40. Describe how the reactivity of alkaline metals changes down the group.


41. Explain the term “ionization energy” in the context of metals.


42. How does the reactivity of sodium compare with magnesium?


43. What are the differences between alkali metals and alkaline earth metals?


44. Explain why noble metals are used in jewelry.


45. Describe one application of magnesium in the industry.


46. How does calcium's reactivity differ from that of sodium?


47. Discuss the importance of non-metals in agriculture.


48. Explain how silver is used in photography.


49. Describe the reaction between a non-metal and hydrogen.


50. How do non-metals react with alkali metals?


51. Explain the significance of the inertness of noble metals.


52. What is the trend of electropositivity in the periodic table?


53. Compare the reactivity of non-metals with that of metals.


54. Discuss the applications of sodium in chemical reactions.


55. Explain the physical characteristics of metals.


56. Why is gold used in electronics?


57. Describe the process of rusting in metals.


58. How does the position of an element in the periodic table affect its reactivity?


59. What is the impact of temperature on the reactivity of metals?


60. Explain why metals conduct heat better than non-metals.


61. How does the reactivity of non-metals vary in the periodic table?


62. Describe the process of electrolysis in the context of metals.


63. What is a common property of all alkaline earth metals?


64. How does the structure of metals contribute to their properties?


65. What role do metals play in construction materials?


66. Explain how non-metals are used in fertilizers.


Tough Questions (36)


67. Compare and contrast the electropositive character of alkali and alkaline earth metals.


68. Discuss the factors affecting the ionization energy of metals.


69. Analyze the reactivity trends of alkali metals and their implications in real-world applications.


70.Explain the relationship between electropositivity and metallic bonding.


71. Discuss how the inertness of noble metals makes them valuable in catalytic processes.


72. Compare the chemical properties of silver and gold.


73. Discuss the significance of calcium in biological systems.


74. Analyze the reactions of metals with dilute acids versus concentrated acids.


75. Explain the differences in chemical reactivity between Group 1 and Group 2 elements.


76. Evaluate the role of metals in redox reactions.


77. Discuss the environmental impacts of mining metals.


78. Analyze the differences between electrolytic and galvanic cells in relation to metal reactivity.


79. Describe the significance of alloys in modern technology.


80. How do the physical properties of metals influence their uses in various industries?


81. Discuss the reactivity of noble metals with halogens.


82. Compare the uses of sodium and potassium in biochemical applications.


83. Analyze how temperature influences the solubility of non-metals in water.


84. Explain the role of metals in catalytic converters in automobiles.


85. Discuss the chemical behavior of non-metals when combined with metals in compounds.


86. Compare and contrast the role of metals and non-metals in organic chemistry.


87. Explain why certain non-metals are essential for human health.


88. Describe how metals react with different non-metals.


89. Analyze the significance of transition metals in chemical processes.


90. Discuss the effects of ionization energy on the reactivity of metals.


Long Questions (10)


Easy Questions (3)


1. Describe the physical characteristics of metals and provide examples of three metals.


2. Explain the significance of electropositivity in metals, with examples.


3. What are the uses of sodium, magnesium, and calcium in daily life? Provide examples.


Moderate Questions (4)


4. Compare the chemical properties and reactivities of alkali metals and alkaline earth metals.


5. Discuss the importance of non-metals and their key physical and chemical properties.


6. Explain the reactions of metals with hydrogen and their implications in chemical reactions.


7. Describe the inertness of noble metals and how this affects their uses in industry.


Tough Questions (3)


8. Analyze the trends of electropositivity and ionization energy in the periodic table and their implications on reactivity.


9. Compare the reactivity of metals with water and acids, providing examples of each.


10. ^Discuss the significance of non-metals in biological systems and their reactions with metals, including examples.