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Monday, 15 June 2026
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Chemistry Past Questions and Answers

Waec Chemistry Questions

Question 1631:
WAEC 2020
Which of the following compounds has the lowest boiling point?
SchoolNGR Classroom
  • A C\(_4\)H\(_10\)
  • B CH\(_3\)COOH
  • C H\(_2\)O
  • D C\(_2\)H\(_5\)OH
View Answer & Explanation
Question 1632:
WAEC 2020
An alkanol containing 60% carbon by mass would have a molecular formula [H=1.0. C-12.0, O= 16.0]
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  • A CH\(_3\)OH
  • B C\(_2\)H\(_5\)OH
  • C C\(_3\)H\(_7\)OH
  • D C\(_4\)H\(_9\)OH
View Answer & Explanation
Question 1633:
WAEC 2020
Which of the following compounds would release hydrogen when reacted with sodium metal?
I. CH\(_3\)COOH
II. CH\(_3\)CH\(_2\)OH
III. CH\(_3\)COOCH\(_3\)
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  • A I only
  • B I and II only
  • C Il and IIl only
  • D I and Ill only
View Answer & Explanation
Question 1634:
WAEC 2020
Which of the following substances is not a reducing agent?
SchoolNGR Classroom
  • A C
  • B CO
  • C O\(_2\)
  • D H\(_2\)
View Answer & Explanation
Question 1635:
WAEC 2020
Which of the following statements is correet for a reaction at equilibrium?
SchoolNGR Classroom
  • A All reactions cease to occur
  • B The eaction has gone to completion
  • C The rates of the forward and backward reactions are equal
  • D The amount of product equals the amount of reactants
View Answer & Explanation

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