MCAT Biology : Compound Identification

Study concepts, example questions & explanations for MCAT Biology

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Example Questions

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Example Question #1 : Ir Spectroscopy

Approximately where would a carbonyl peak be found on an IR spectrum?

Possible Answers:



The peak location will vary depending on the compound being analyzed.


Correct answer:



It is important to memorize a couple key functional groups, and where they are located on an IR spectrum. If you see a sharp peak near 1700cm-1, you can assume it is made by a carbonyl group. 

Similarly, a wide peak around 3000cm-1 will be made by a hydroxyl group.

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