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Thursday, 21 May 2026
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Chemistry Past Questions and Answers

Chemistry Questions

Question 611:
The bond which joins two ethanoic acid molecules in the liquid state is
  • A A covalent bond
  • B An ionic bond
  • C A dative covalent bond
  • D A hydrogen bond
View Answer & Explanation
Question 612:
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
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Question 613:
The gas responsible for most of the fatal explosions in coal mines is
  • A Butane
  • B Ethene
  • C Ethane
  • D Methane
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Question 614:
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
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Question 615:
It can be deduced from the vapour pressure curves above that
  • A Liqiud 1 has the highest boiling point
  • B Liquid ll has the highest boiling point
  • C Liquid lll has the highest boiling point
  • D Liquid lll has the lowest boiling point
View Answer & Explanation