Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
26
Transcribed Image Text:**Propose a chemical structure for the following name:**
**2-ethylpentan-1-amine**
### Options:
- **A:** Structure shows a straight-chain pentane with an amino group (\(NH_2\)) attached to the first carbon and an ethyl group on the second carbon.
- **B:** Structure shows a straight-chain pentane with an amino group (\(NH_2\)) attached to the second carbon and an ethyl group on the third carbon.
- **C:** Structure shows a straight-chain pentane with an amino group (\(NH_2\)) attached to the third carbon and an ethyl group on the second carbon.
- **D:** Structure shows a straight-chain hexane with a primary amine (\(NH\)) group at the end.
### Multiple Choice:
- ○ A
- ○ B
- ○ C
- ○ D
**Instructions:** Select the option that correctly represents the structure of 2-ethylpentan-1-amine. The correct structure should have the amine group attached to the first carbon of a pentane chain, with an ethyl group attached to the second carbon.
Expert Solution
Step 1: State IUPAC rules
In first step, we identify functional groups present.
We make longest carbon chain possible.
While numbering the carbon atoms, give priority to functional groups if present.
We also make sure it follows sum of least locants rule; that is sum of numbers should be least possible on which substituents are present.
Write the substituents in alphabetical order.
IUPAC NAME =
Prefix + word root + 1°suffix + 2°suffix.
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