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Multiple Choice Questions on Infrared Spectroscopy

Find the correct answer by clicking on the choice given.

1. What is the structure of the compound that gives the following infrared spectrum?




2. What is the structure of the compound that gives the following infrared spectrum?


3. What is the structure of the compound that gives the following infrared spectrum?




4. What is the structure of the compound that gives the following infrared and PMR spectra?




5. Which of the following bonds would show the strongest absorption in the IR?

(a) carbon-hydrogen

(b) oxygen-hydrogen

(c) nitrogen-hydrogen

(d) sulfur-hydrogen



6. Why is the oxygen-hydrogen absorption of CH3OH such a broad band in the infrared?

(a) Rotational energy levels broaden the absorption.

(b) Hyperconjugation resonance broadens the absorption.

(c) Resonance broadens the absorption.

(d) Hydrogen bonding broadens the absorption.

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