15. Analytical Techniques:IR, NMR, Mass Spect
Infrared Spectroscopy Table
Multiple Choice
Multiple ChoiceWhich molecule would you expect tohave the lowest wavenumber for the C=O π bond IR band?
A
![The figure illustrates the structure of a molecule. A 3-carbon alkane chain is depicted as a line structure using 2 zigzag lines. C 3 is double bonded to O above and single bonded to O C H 3 on the lower right.](https://media.pearsoncmg.com/ph/esm/ecs_mullins_organic1e/msa/content/practice-test/img/Ch14_Q04_A3.jpg)
B
![The figure illustrates the structure of a molecule. A 3-carbon alkane chain is depicted as a line structure using 2 zigzag lines. C 3 is double bonded to O above and single bonded to H on the lower right.](https://media.pearsoncmg.com/ph/esm/ecs_mullins_organic1e/msa/content/practice-test/img/Ch14_Q04_A2.jpg)
C
![The figure illustrates the structure of a molecule. A 3-carbon alkane chain is depicted as a line structure using 2 zigzag lines. C 3 is double bonded to O above and single bonded to N H 2 on the lower right.](https://media.pearsoncmg.com/ph/esm/ecs_mullins_organic1e/msa/content/practice-test/img/Ch14_Q04_A1.jpg)
D
![The figure illustrates the structure of a molecule. A 3-carbon alkane chain is depicted as a line structure using 2 zigzag lines. C 3 is double bonded to O above and single bonded to C l on the lower right.](https://media.pearsoncmg.com/ph/esm/ecs_mullins_organic1e/msa/content/practice-test/img/Ch14_Q04_A4.jpg)
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