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Chemistry WAEC Past Questions

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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
1891

Which of the following equimolar solutions has the highest conductivity?

  • A. \(H_2SO{_4(aq)}\)
  • B. \(NaOH{_(aq)}\)
  • C. \(H_2CO{_3(aq)}\)
  • D. \(CH_3COOH{_4(aq)}\)
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1892

The pair of compounds that belongs to the same homologous series is

  • A. \(C_2H_6\) and \(C_4H_{10}\)
  • B. \(C_3H_8\) and \(C_3H_6\)
  • C. \(C_2H_4\) and \(C_4H_{10}\)
  • D. \(C_4H_{10}\) and \(C_5H_{10}\)
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1893

Which of the following equations does not illustrate correctly one of the reactions of chlorine?

  • A. \(Ca(OH)_2 + Cl_2 → CaOCl_2 + H_2O\)
  • B. \(Cl_2 + 2NaF → 2NaCl + F_2\)
  • C. \(Cl_2 + 2NaOH → NaCl + NaClO + H_2O\)
  • D. \(H_2S + Cl_2 → 2HCl + S\)
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1894

The salt solution formed firm a reaction between ethanoic acid and sodium hydroxide solution would be

  • A. amphoteric.
  • B. neutral
  • C. basic
  • D. acidic
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1895

The separation technique that is suitable for separating iodine from tetrachloromethane is

  • A. solvent extraction
  • B. decantation
  • C. fractional distillation
  • D. filtration
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