General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

Published by Pearson
ISBN 10: 0321967461
ISBN 13: 978-0-32196-746-6

Chapter 12 - Introduction to Organic Chemistry: Hydrocarbons - 12.3 Alkanes with Substituents - Questions and Problems - Page 456: 12.13

Answer

a. The same molecule. b. Structural isomers. c. Structural isomers.

Work Step by Step

a. The second representation is just a 90$^o$ rotation of the first one. b. The first molecule has a chain of 4 carbons, whereas the second has a chain of 5 carbons. Thus, they are different molecules. c. The first molecule has a chain of 5 carbons, whereas the second has a chain of 4 carbons. Thus, they are different molecules.
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