15. Analytical Techniques:IR, NMR, Mass Spect

2-Methylnonan-4-one can undergo two different McLafferty rearrangements. Draw the products of each of them.

In the mass spectrum of the following compounds, which is the tallest—the peak at m/z = 57 or the peak at m/z = 71?

a. 3-methylpentane

b. 2-methylpentane

What hydrocarbons that contain a six-membered ring will have a molecular ion peak at m/z = 112?

Assign the structure based on the mass spectrum and IR spectrum shown.

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Give the structure of the molecule that gives rise to the following IR and mass spectra.

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