What Are the Possible Combinations of Multiple Bonds and Rings

question 13

Multiple Choice

What are the possible combinations of multiple bonds and rings if a compound's index of hydrogen deficiency equals 3?

• A)three rings; two rings and two double bonds; one ring and two triple bonds
• B)three rings; two rings and a triple bond; one ring and two triple bonds; three triple bonds
• C)three rings; two rings and a double bond; one ring and two double bonds; one ring and one triple bond
• D)three rings; two rings and a double bond; one ring and two double bonds; one ring and two triple bonds
• E)two rings; two rings and a double bond; one ring and two double bonds; one ring and one triple bond

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Definitions:

C-D Bond

A chemical bond between a carbon atom and a deuterium atom, an isotope of hydrogen.

Infrared Wavelength

Portions of the electromagnetic spectrum that are longer than visible light but shorter than microwaves, commonly used in spectroscopy to identify molecular vibrations.

Wavenumber

Wavenumber is a measure of the number of wavelengths per unit distance, often used in spectroscopy to describe the energy level of electromagnetic radiation.

IR Spectroscopy

An analytical technique that uses infrared light to study the vibrational and rotational movements of molecules, revealing structural and functional group information.