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Chemistry 2003 WAEC Past Questions

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6
Which of the following acids is dibasic?
  • A. Hydrochloric acid
  • B. Trioxosulphate (IV) acid
  • C. Dioxonitrate (lll) acid
  • D. Ethanoic acid
View Answer & Discuss WAEC 2003
7

Bees inject an acidic substance when they sting. Which of the following chemical could be used to treat bee stings?

  • A. CH3COOH
  • B. NaHCO3
  • C. C2H5OH
  • D. H2O2
View Answer & Discuss (3) WAEC 2003
8
Which of the following salts can be prepared by reacting the metal with dilute H2SO4?
  • A. CuSO4
  • B. MgSO4
  • C. BaSO4
  • D. PbSO4
View Answer & Discuss (1) WAEC 2003
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9

Which of the following solutions will give a precipitate with dilute tetraoxosulphate (V) acid? l. Lead (ll) trioxonitrate (V) solution ll. Barium chloride solution lll. Sodium chloride solution

  • A. l only
  • B. ll only
  • C. l and ll only
  • D. ll and lll only
View Answer & Discuss (7) WAEC 2003
10
Substance Q reacts with cold water to form a solution which turns red litmus blue. Substance Q could be
  • A. zinc
  • B. phosphorus
  • C. lead
  • D. sodium
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