Specific compounds are named in the boxes below and the functional group part of

Question

Specific compounds are named in the boxes below and the functional group part of the name is in boldface. For each boldface functional group, draw an expanded structural formula. Indicate the approximate wavenumbers of the IR absorption peaks that could be used to distinguish between the members of each of the pairs of compounds in a row. Mention at least one distinguishing absorption peak for each compound in the pair that is absent in the spectrum of the other compound

Example:

acetonitrile and methylamine

Explanation / Answer

A) proponol has OH strech peak at 3500 cm-1 value range which is absent in methyl ethyl ether

B) pentyne has C triple bonded C strech at 2200 cm-1 range which is absent in 1,3 pentadiene

C) pentanal has C(=O)-H strech at 2930 cm-1 range which is absent in 2 pentanone

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