Which of the following is the most stable alkene? I CH₂ Select one: a. IV b. I C. III -CH₂CH3 O d. II II -CH₂CH; III -CH=CH₂ CH3 IV -CH₂CH3 CH3 CH3

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Chapter20: Organic Chemistry
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**Question:**

Which of the following is the most stable alkene?

**Diagrams:**

- **I:** A cyclopentene ring with a methyl group (CH₃) and an ethyl group (CH₂CH₃) attached to the same carbon.
- **II:** A cyclopentene ring with a methyl group (CH₃) and an ethyl group (CH₂CH₃) attached to adjacent carbons.
- **III:** A cyclopentene ring with a methyl group (CH₃) and a vinyl group (CH=CH₂) attached to the same carbon.
- **IV:** A cyclopentene ring with a methyl group (CH₃) and an ethyl group (CH₂CH₃) attached to the same carbon, with an additional methyl group (CH₃) on the adjacent carbon.

**Options:**

a. IV

b. I

c. III

d. II
Transcribed Image Text:**Question:** Which of the following is the most stable alkene? **Diagrams:** - **I:** A cyclopentene ring with a methyl group (CH₃) and an ethyl group (CH₂CH₃) attached to the same carbon. - **II:** A cyclopentene ring with a methyl group (CH₃) and an ethyl group (CH₂CH₃) attached to adjacent carbons. - **III:** A cyclopentene ring with a methyl group (CH₃) and a vinyl group (CH=CH₂) attached to the same carbon. - **IV:** A cyclopentene ring with a methyl group (CH₃) and an ethyl group (CH₂CH₃) attached to the same carbon, with an additional methyl group (CH₃) on the adjacent carbon. **Options:** a. IV b. I c. III d. II
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