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Chemistry WAEC Past Questions

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26
How many isomers can be obtained from C4H10?
  • A. o
  • B. 1
  • C. 2
  • D. 3
  • E. 4
View Answer & Discuss (5) WAEC 1988
27

Water gas is a mixture of?

  • A. CO2 and H2
  • B. CO and H2O
  • C. CO2 and CO
  • D. CO and N2
  • E. CO and H2
View Answer & Discuss (5) WAEC 1988
28
Which of the following metals cannot extracted from its ore by using carbon (ll) oxide as the reducing agent?
  • A. Cu
  • B. Zn
  • C. Al
  • D. Pb
  • E. Fe
View Answer & Discuss (3) WAEC 1988
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29
Which of the following is not a naturally occurring iron ore?
  • A. FeCl2
  • B. Fe2O3O3
  • C. Fe2O3
  • D. FeCO3
  • E. FeS2
View Answer & Discuss (2) WAEC 1988
30

Which of the following equations represents the reaction of chlorine with hot concentrated sodium hydroxide solution?

  • A. 2NaOH+CI2 → NaCIO + NaCI + H2O
  • B. 4NaOH + 2CI → 4NaCI + 2H2O + O2
  • C. 6NaOH + 3CI2 → NaCIO3 + 5NaCI + 3H2O
  • D. 2NaOH + CI2 → 2NaCI + H2O2
  • E. NaOH + 2CI2 + H2O → NaCI + 3HCI + O2
View Answer & Discuss (8) WAEC 1988
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