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Chemistry Past Questions

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4551

An example of an alkaline gas is

  • A. HCl
  • B. N\(_2\)
  • C. NH\(_3\)
  • D. NO\(_2\)
View Answer & Discuss (5) JAMB 2025
4552

The dusty and sand particles present in the air is an example of 

  • A. a suspension
  • B. a dispersion
  • C. an emulsion
  • D. a saturated solution
View Answer & Discuss (2) JAMB 2025
4553

The property of metal that makes it suitable as a catalyst is

  • A. filled f-orbital
  • B. partially filled d-orbitals
  • C. partially filled f-orbital
  • D. filled d-orbital
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4554

When ΔH is positive and small, and ΔS is positive and large, the reaction will be

  • A. Non-spontaneous
  • B. favour forward reaction only
  • C. favour backward reaction only
  • D. spontaneous
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4555

Calculate the pH of 0.001M  KOH solution.

  • A. 11
  • B. 14
  • C. 12
  • D. 3
View Answer & Discuss (22) JAMB 2025
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