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4326

Which of the statements about gases is not correct?

  • A. Gases have low densities compared to solids and liquids of equal mass.
  • B. The total kinetic energy of the gas is not affected by collision
  • C. Molecules of the gas are in constant motion
  • D. Gases are highly soluble in water at high temperatures
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4327

Determine the volume of 0.100 mol of HCl in \(0.250 mol dm^3\) of solution.

  • A. \(200cm^3\)
  • B. \(100cm^3\)
  • C. \(20cm^3\)
  • D. \(400cm^3\)
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4328

Positive ions in a sea of electrons are found in

  • A. covalent bonds
  • B. metallic bonds
  • C. dative bonds
  • D. ionic bonds
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4329

An element X has two isotopes, \(^{65}X_{30}\) and \(^{66}X_{30}\) with relative abundance of 60 % and 40% respectively. The relative atomic mass of X is

  • A. 66.00
  • B. 65.50
  • C. 65.00
  • D. 65.40
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4330

Which of the following statements about the collision theory is correct?

  • A. Ineffective collision brings about chemical reaction
  • B. All collisions bring about reactions
  • C. The rate of reaction is proportional to the number of effective collisions
  • D. Collision of molecules will split the molecules to react
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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