D Question 1 Take Quiz Match the group corresponding to the IR stretching frequency. C=O 1700 cm-1 OH 3300 cm-1 C=C 1600 cm-1 Benzene ring 3100 cm-1 C-O 1100 cm-1 C triple bond N 2200 cm-1 C triple bond C 2200 cm-1 NH 3300 cm-1 -CH 2900 cm-1 <> () 10 pts

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