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Tuesday, 11 August 2026
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Chemistry Past Questions and Answers

Post Utme Chemistry Questions

Question 761:
The hydrocarbon C₆H₁₂ belongs to:
  • A Alkane family
  • B Alkyne family
  • C Alkene family
  • D Alcohol family
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Question 762:
Which hydrocarbon burns with the cleanest flame?
  • A Ethene
  • B Ethyne
  • C Methane
  • D Benzene
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Question 763:
The main products formed during incomplete combustion are:
  • A Oxygen and hydrogen
  • B Nitrogen and chlorine
  • C Carbon dioxide and water
  • D Carbon monoxide and soot
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Question 764:
Increasing the concentration of a reactant usually makes a reaction:
  • A Move more slowly
  • B Become completely inactive
  • C Produce fewer particles
  • D Occur more rapidly
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Question 765:
During electrolysis of aqueous silver nitrate, silver is deposited because silver ions:
  • A Form oxygen rapidly
  • B Are highly reactive
  • C Gain electrons easily
  • D Remain neutral in solution
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