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Friday, 12 June 2026
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Chemistry Past Questions and Answers

Chemistry Questions

Question 2586:
WAEC 1999
Alkanoates are produced from alkanols by
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  • A Fermentation
  • B Saponification
  • C Oxidation
  • D Esterification
View Answer & Explanation
Question 2587:
WAEC 1999
Which of the following is a secondary alkanol?
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  • A OHCI<sub style='font-size: smaller;'>2</sub>-CH<sub style='font-size: smaller;'>2</sub>OH
  • B H<sub style='font-size: smaller;'>2</sub>C=CH-CH<sub style='font-size: smaller;'>2</sub>OH
  • C CH <sub style='font-size: smaller;'>3</sub>-CH(OH)-CH <sub style='font-size: smaller;'>3</sub>
  • D CH<sub style='font-size: smaller;'>3</sub>-(CH<sub style='font-size: smaller;'>2</sub>)<sub style='font-size: smaller;'>3</sub>-CH<sub style='font-size: smaller;'>2</sub>OH
View Answer & Explanation
Question 2588:
WAEC 1999
Geometric (cis-trans) isomerism is exhibited by
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  • A C <sub style='font-size: smaller;'>2</sub>H <sub style='font-size: smaller;'>2</sub>CI <sub style='font-size: smaller;'>2</sub>
  • B CH<sub style='font-size: smaller;'>2</sub>CI<sub style='font-size: smaller;'>5</sub>
  • C C <sub style='font-size: smaller;'>4</sub>H <sub style='font-size: smaller;'>10</sub>
  • D C<sub style='font-size: smaller;'>5</sub>H<sub style='font-size: smaller;'>12</sub>
View Answer & Explanation
Question 2589:
WAEC 1999
Which of the following is needed to produce slag during the extraction of iron in the blast furnace?
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  • A Cryolite
  • B Limestone
  • C Carbon
  • D Sulphur
View Answer & Explanation
Question 2590:
WAEC 1999
Environmental pollution problems are generally more severe in countries which have
SchoolNGR Classroom
  • A Dense population
  • B Low birth rate
  • C Great land mass
  • D Limited industries
View Answer & Explanation

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