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Monday, 15 June 2026
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Chemistry Past Questions and Answers

Waec Chemistry Questions

Question 876:
A transition metal would be expected to
  • A From oxides with different formulae
  • B Have strong oxidizing ability
  • C Have low density
  • D Have an atomic structure with an incomplete outermost shell
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Question 877:
Which of the following properties of atoms generally increases down a group in the periodic table?
  • A Electron affinity
  • B Electronegativity
  • C Ionic radius
  • D Lonization energy
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Question 878:
Which of the following statements about sodium is not true?
  • A Na+ is smaller in size than Na
  • B Na is smaller in size than Na+
  • C Na+ has fewer electrons than Na
  • D The effective nuclear charge in Na+ is greater than in Na
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Question 879:
If the difference between the electronegativities of two elements is large, the type of bond that can be formed between them is
  • A Covalent
  • B Dative
  • C Ionic
  • D Metallic
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Question 880:
Which of the following compounds has hydrogen bonds between its molecules?
  • A HF
  • B HBr
  • C HCI
  • D HI.
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