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Chemistry JAMB Past Questions

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1396
The alkaline hydrolysis of fats and oils produces soap and
  • A. propane 1, 1, 3 - triol
  • B. propane - 1,2,3 - triol
  • C. propane - 1,3,3 - triol
  • D. propane - 1, 2, 2 - triol
View Answer & Discuss (2) JAMB 1989
1397
The gas responsible for most of the fatal explosions in coal mines is
  • A. butane
  • B. ethene
  • C. ethane
  • D. methane
View Answer & Discuss (2) JAMB 1989
1398

Three liquids X, Y and Z containing only hydrogen and carbon were burnt on a spoon. X and Y burnt with sooty flames while Z did not. Y is able to discharge the colour of bromine water whereas X and Z cannot. Which of the liquids would be aromatic in nature?

  • A. X and Z
  • B. Y
  • C. X
  • D. Z
View Answer & Discuss (7) JAMB 1989
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1399
Sodium chloride may be obtained from brine by
  • A. titration
  • B. decantation
  • C. distillation
  • D. evaporation
  • E. sublimation
View Answer & Discuss (1) JAMB 1984
1400

20 cm\(^3\) of hydrogen gas are sparked with 20cm\(^3\) of oxygen gas in an endimoeter at 373k (100\(^0\)C) and 1 atmosphere. The resulting mixture is cooled to 298 K (25 oC) and passed over calcium chloride. The volume of the residual gas is

  • A. 40 cm 3
  • B. 20 cm 3
  • C. 30 cm 3
  • D. 10cm 3
  • E. 5cm 3
View Answer & Discuss (19) JAMB 1984
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