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15. Analytical Techniques:IR, NMR, Mass Spect - Part 2 of 4

15. Analytical Techniques:IR, NMR, Mass Spect / IR Spect:Extra Practice / Problem 3

Will bond b of ethyne absorb at a higher or lower wavenumber than bond a of prop-1-ene? Briefly explain.

A

Higher wavenumber; the C—H bond of an alkyne is shorter and stronger.

B

Higher wavenumber; the C—H bond of an alkyne is longer and weaker.

C

Lower wavenumber; the C—H bond of an alkyne is shorter and stronger.

D

Lower wavenumber; the C—H bond of an alkyne is longer and weaker.

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