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556
A given fuel has an octane number of 100. This means that
  • A. the knocking tendency of the fuel is low
  • B. the fuel is a mixture of several hydrocarbons
  • C. a large amount of alkanes is present in the fuel
  • D. the fuel needs to be cracked before use
View Answer & Discuss WAEC 2003
557
The equation for the reaction at the anode during the electrolysis of concentrated sodium chloride solution is
  • A. 2CI- (aq) → CI,sub>2(g) + 2e-
  • B. 40H-(aq) → 2H2O(I) + O2(g) + 4e -
  • C. Na+(aq) + e- → Na(s)
  • D. 2H+(aq) + 2e- → H2(g)
View Answer & Discuss (1) WAEC 2003
558
Which of the following compounds has the same empirical formula as benzene?
  • A. C2H2
  • B. C2H4
  • C. C4H6
  • D. C6H12
View Answer & Discuss WAEC 2003
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
559
A given fuel has an octane number of 100. This means that
  • A. the knocking tendency of the fuel is low
  • B. the fuel is a mixture of several hydrocarbons
  • C. a large amount of alkanes is present in the fuel
  • D. the fuel needs to be cracked before use
View Answer & Discuss (2) WAEC 2003
560

Wine containing 8% to 17% ethanol can be converted to gin containing about 40% ethanol by

  • A. evaporation
  • B. distilation
  • C. fermentation
  • D. oxidation
View Answer & Discuss (4) WAEC 2003
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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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