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Chemistry Exam Question
This exam is setup from WAEC Chemistry topic of standard questions.
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1. The atomic number of nitrogen is
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3. Which of the following is a d-block element?
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4. Which of the following is a chemical change?
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5. Which of the following is a non-metallic oxide?
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6. The process of coating iron with zinc to prevent rusting is
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7. The isotope of an element differs in
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8. Which of these is not a fertilizer?
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9. Which of these oxides is amphoteric?
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10. Which of these is a radioactive element?
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11. Which of the following is an endothermic reaction?
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12. Which of these is used in the manufacture of soap?
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13. Which of these is a saturated hydrocarbon?
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14. Which of these is a noble gas?
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15. The ratio of hydrogen to oxygen atoms in water is
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16. Which of these is not a pollutant?
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19. Which of these gases is collected over water by downward delivery?
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20. The gas responsible for the depletion of the ozone layer is
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22. Which type of bond is present in sodium chloride?
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24. A catalyst increases the rate of a reaction by
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25. Which of these hydrocarbons is aromatic?
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26. The number of protons in the nucleus of an atom is called its
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27. Which of the following metals reacts slowly with cold water?
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28. Which of the following gases is denser than air?
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29. Which of the following processes is exothermic?
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30. A solution with pH = 2 is
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31. The SI unit of molar mass is
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32. Which of the following will give a precipitate with silver nitrate solution?
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33. The main constituent of natural gas is
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34. The bleaching action of chlorine is due to
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35. Which of the following is not a characteristic of transition metals?
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36. Which of the following is a trihydric alcohol?
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37. The number of moles in 44 g of CO₂ is
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38. The alkaline earth metals belong to group
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39. Which of these is used in vulcanization of rubber?
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40. Which of the following elements is most electronegative?
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41. Which of these is a weak acid?
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42. Which of the following elements is a halogen?
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43. The gas evolved when zinc reacts with dilute hydrochloric acid is
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44. The number of electrons shared in a triple covalent bond is
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45. Which of the following is a fuel?
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46. The colour of phenolphthalein in alkaline solution is
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47. Which of the following is a greenhouse gas?
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48. The process by which crude oil is separated into its components is
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49. Which of the following is a mixture?
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50. The anode in the electrolysis of brine is made of
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51. Which of the following is not a property of bases?
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52. Which of the following will not decolourize bromine water?
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54. Which of the following is used as a drying agent for gases?
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55. What is the IUPAC name of CH₃COOH?
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56. Which of these is used in the manufacture of glass?
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57. Which of the following is a raw material for the Solvay process?
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58. The common laboratory preparation of oxygen involves the decomposition of
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59. The law of conservation of mass was first stated by
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60. Which of the following is used as a drying agent for gases?
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61. The gas responsible for acid rain is
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