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Sunday, 05 April 2026
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Chemistry Past Questions and Answers

Waec Chemistry Questions

Question 1091:
A gas that is collected by upward delivery is likely to be
  • A Heavier than air
  • B Insoluble in water
  • C Lighter than air
  • D Soluble in water
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Question 1092:
Bubbling excess carbon (IV) oxide into calcium hydroxide solution results in the formaton of
  • A CaO
  • B Ca(HCO3)2
  • C H2CO3
  • D CaCO3
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Question 1093:
The equation P = \(\frac{K}{V}\) illustrates
  • A Boyle's law
  • B Charles' law
  • C Dalton's law
  • D Gay Lussac's law
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Question 1094:
The initial volume of a gas at 300 K was 220 cm 3 Determine [/sup]its temperature if the volume became 250 cm [sup]3
  • A 183 K
  • B 264 K
  • C 300 K
  • D 341 K
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Question 1095:
Which of the following equimolar solutions has the highest conductivity?
  • A CH3COOH(aq)
  • B H2CO3(aq)
  • C H 2SO 4(aq)
  • D NaOH (aq)
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