Exam 2: Representative Carbon Compounds: Functional Groups, Intermolecular Forces, and Infrared Ir Spectroscopy

An oxygen-containing compound shows strong IR absorption at 1630-1780 cm^-1 and 3200-3550 cm^-1.What type of compound is it likely to be?

Which molecule has a zero dipole moment?

Which alkane is predicted to have the highest melting point of those shown?

How many 2º alkyl bromides,neglecting stereoisomers,exist with the formula C₆H₁₃Br?

For the following reaction sequence (it is not necessary to understand the chemistry)what significant change(s)would be expected by IR (ignoring C-H absorptions)?

What functional group is present in the following compound?

For the functional group(s)on the following molecule what characteristic IR absorption(s)would be expected (ignoring C-H absorptions)?

What functional group(s)is/are present in the following compound?

Of the following compounds,the one with the highest boiling point is:

What functional group(s)is/are present in the following compound?

Which compound would you expect to have the lowest boiling point?

Ethanol,C₂H₅OH,and propane,C₃H₈,have approximately the same molar mass,yet ethanol has a much higher boiling point.Briefly explain why.

Draw all isomers of C₆H₁₄.

Which of these would you expect to have the lowest boiling point?

Draw a structural formula for C₈H₁₈ ,in which there are two quaternary carbons.

What group makes up the following aldehyde (benzaldehyde)?

What functional group(s)is/are present in the following compound?

What intermolecular forces hold base pairs together in DNA?

Which compound would you expect to have the highest boiling point?

The compound shown below is the male sex hormone,testosterone. In addition to a cycloalkane skeleton,testosterone also contains the following functional groups: