It can be deduced from the vapour pressure curves above that

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Chemistry JAMB 1989

It can be deduced from the vapour pressure curves above that

  • liqiud 1 has the highest boiling point
  • liquid ll has the highest boiling point
  • liquid lll has the highest boiling point checkmark
  • liquid lll has the lowest boiling point

The correct answer is: C

Explanation

Trace the iii curve horizontally and you have over 20°C temperature

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