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4316

Carbon is deposited in the exhaust pipes of cars because of

  • A. presence of additives in petrol
  • B. incomplete combustion of petrol
  • C. presence of carbon in petrol
  • D. contamination of petrol with diesel
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4317

Which of the following laws or theory cannot be explained by the application of the kinetic theory of gases?

  • A. Dalton's atomic theory
  • B. Charle's law
  • C. Boyle's law
  • D. Gay- Lussac's law
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4318

How many unpaired electrons are present in \(_{26}Fe^{3+}\)?

  • A. 4
  • B. 2
  • C. 3
  • D. 5
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4319

A consequence of global warming is

  • A. air pollution
  • B. High Humidity
  • C. flooding
  • D. Water pollution
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4320

Going down group II in the periodic table normally

  • A. ionization energy increases
  • B. melting point increases
  • C. shielding effect decreases
  • D. electronegativity increases
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free