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Friday, 12 June 2026
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Chemistry Past Questions and Answers

Chemistry Questions

Question 2871:
Fats are classified as
  • A Hydrocarbons
  • B Alkanoates
  • C Alkanols
  • D Carbohydrates
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Question 2872:
Ethyne undergoes the following reactions except
  • A Polymerisation
  • B Addition
  • C Substitution
  • D Esterification
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Question 2873:
Hardness in water can be removed by adding
  • A Copper (ll) tetraoxosulphate (IV)
  • B Sodium trioxocarbonate (IV)
  • C Sodium chloride
  • D Alum
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Question 2874:
Which of the following pairs of solutions will produce a precipitate when mixed?
  • A Pb(NO<sub style='font-size: smaller;'>3</sub>)<sub style='font-size: smaller;'>2(aq)</sub> and NaCI<sub style='font-size: smaller;'>(aq)</sub>
  • B MgSO<sub style='font-size: smaller;'>4(aq)</sub> and HCI<sub style='font-size: smaller;'>(aq)</sub>
  • C ZnCI<sub style='font-size: smaller;'>2(aq)</sub> and NaSO<sub style='font-size: smaller;'>4(aq)</sub>
  • D NaOH<sub style='font-size: smaller;'>(aq)</sub> and HNO<sub style='font-size: smaller;'>3(aq)</sub>
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Question 2875:
Which of the following substance is an alloy of lead?
  • A Brass
  • B Duralumin
  • C Stainless steel
  • D Soft solder
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