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Chemistry 2016 WAEC Past Questions

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16
An element X froms the following oxides X2O, XO and XO2. This phenomenon illustrates the law of________?
  • A. Conservation of mass
  • B. Definite proportion
  • C. Mass action
  • D. Multiple proportion
View Answer & Discuss (1) WAEC 2016
17
How many moles of oxygen would contain 1.204 x 1024 molecules?
[Avogadro's constant (NA) = 6.02 x 1023]
  • A. 1
  • B. 2
  • C. 3
  • D. 4
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18
Which of the following statements about solids is correct?
  • A. Solid particles are less orderly than those of a liquid
  • B. Solid have lower densities than liquids
  • C. Solid particles have greater kinetic energies than those of liquids
  • D. Solid particles cannot be easily compressed
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19
Which of the following apparatus can be used to measure a specific volume of a liquid accurately?
  • A. Beaker
  • B. Conical flask
  • C. Measuring cyclinder
  • D. Pipette
View Answer & Discuss (3) WAEC 2016
20
The general gas equation \(\frac{PV}{T}\) = K is a combination of
  • A. Boyle's and Charles' laws
  • B. Boyle's and Graham's laws
  • C. Charles' and Graham's laws
  • D. Dalton's and Graham's laws
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC offline past questions - with all answers and explanations in one app - Download for free