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Worksheet: Monitoring Reactions by IR Spectroscopy

Q1:

A student synthesizing acetone from propan-2-ol used IR spectroscopy to monitor the progress of the reaction. Which of the following would have indicated the reaction was progressing?

  • AA weakening absorption in the 1 7 0 0 1 7 2 0 cm−1 range
  • BA strengthening absorption in the 3 3 0 0 3 4 0 0 cm−1 range
  • CA strengthening absorption in the 1 6 0 0 1 6 5 0 cm−1 range
  • DA strengthening absorption in the 1 7 0 0 1 7 2 0 cm−1 range
  • EA weakening absorption in the 1 6 0 0 1 6 5 0 cm−1 range