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Monday, 15 June 2026
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Chemistry Past Questions and Answers

Post Utme Chemistry Questions

Question 171:
According to Charies's law, the volumes of a gas becomes zero at ____________
  • A \(0^{\circ} \mathrm{C}\)
  • B \(-100^{\circ} \mathrm{C}\)
  • C \(-273^{\circ} \mathrm{C}\)
  • D \(-373^{\circ} \mathrm{C}\)
View Answer & Explanation
Question 172:
It is difficult to achieve an orderly arrangement of the molecules of a gas because they ____________
  • A Have no definite shape
  • B Have little force of attraction between them
  • C Can collide with one another in the container
  • D Are too small in size
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Question 173:
An electron can be added to a halogen atom to form a halide ion with ____________
  • A 2 valence electrons
  • B 3 valence electrons
  • C 7 valence electrons
  • D 8 valence electrons
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Question 174:
The property of Chlorine which causes hydrogen chloride to be more ionic than the chlorine molecules are its ____________
  • A Electron valency
  • B Electron affinity
  • C Electron positivity
  • D Electron negativity
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Question 175:
Which of the following hydrogen halides has the highest entropy value?
  • A HF
  • B \(\mathrm{HCl}\)
  • C \(\mathrm{HBr}\)
  • D HI
View Answer & Explanation