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Chemistry 2014 JAMB Past Questions

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36
The process of converting starch to ethanol is
  • A. cracking
  • B. distillation
  • C. fermentation
  • D. oxidation
View Answer & Discuss (2) JAMB 2014
37
The polymer used in making car rear lights is
  • A. perspex
  • B. bakeelite
  • C. polystyrene
  • D. polyacrylonitrile
View Answer & Discuss (8) JAMB 2014
38

CH3COOC2H5(1) + H2O(1) ⇌ CH 3COOH (aq) + C 2H 5OH (aq)

The purpose of H+ in the reaction above is to

  • A. increase the yield of products
  • B. maintain the solution at a constant PH
  • C. increase the rate of the hydrolysis
  • D. decrease the rate of the reverse reaction
View Answer & Discuss (13) JAMB 2014
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39
A hydrocarbon has an empirical formula CH and a vapour density of 39. Determine its molecular formula.

[C = 12, H = 1]
  • A. C2H6
  • B. C3H8
  • C. C3H4
  • D. C6H6
View Answer & Discuss JAMB 2014
40

Polystyrene is widely used as packaging materials for fragile objects during transportation because of its

  • A. lightness
  • B. low density
  • C. high density
  • D. high compressibility
View Answer & Discuss (7) JAMB 2014
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