Isomers - GRE Subject Test: Chemistry
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The molecules shown below are best described as __________.
The molecules shown below are best described as __________.
The molecules in this problem are isomers because they each have unique configurations and do not share the same funcitonal groups at the same carbon positions. Enantiomers are reflections of each other. Diastereomers are stereoisomers that differ at one or more stereocenters, while epimers are stereoisomers that differ at only one stereocenter.
The molecules in this problem are isomers because they each have unique configurations and do not share the same funcitonal groups at the same carbon positions. Enantiomers are reflections of each other. Diastereomers are stereoisomers that differ at one or more stereocenters, while epimers are stereoisomers that differ at only one stereocenter.
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Which of the following is not a geometric isomer of pentene?
Which of the following is not a geometric isomer of pentene?
Geometric isomers are compounds that have the same molecular formula but they differ in the way they are arranged spatially. Pentene carries the molecular formula, 
. The longest chain of carbon atoms should be five carbons. According to its name, pentene is an alkene due to the -ene form its name, therefore must also contain a 
bond. The only compound without a chain of 5 carbons consecutively is 
and this compound is not a geometric isomer of pentene.
Geometric isomers are compounds that have the same molecular formula but they differ in the way they are arranged spatially. Pentene carries the molecular formula, and this compound is not a geometric isomer of pentene.
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