Among the five radical structures shown, which type of radical is the most stable ? Hint: Note the substitution patterns of the radicals. H H. CH3 H-c H,C-c 3 1 Type the number corresponding to the most stable radical in the box below:

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**Understanding Radical Stability**

Among the five radical structures shown, which type of radical is the most stable?

**Hint:** Note the substitution patterns of the radicals.

The radical structures are as follows:

1. Structure 1: H\ -C\•H
2. Structure 2: H₃C-C\•-H
3. Structure 3: H₂C=CH-C\•
4. Structure 4: H₃C-C\•-CH₃
5. Structure 5: (CH₃)₃C\•

**Examine the stability:** 

- Structure 1: Primary radical
- Structure 2 & 3: Secondary radicals
- Structure 4 & 5: Tertiary radicals

Type the number corresponding to the most stable radical in the box below. 

---

**Note:** The stability of radicals is influenced by their substitution pattern, with tertiary radicals typically being more stable than secondary, and secondary more stable than primary due to hyperconjugation and the inductive effect.
Transcribed Image Text:**Understanding Radical Stability** Among the five radical structures shown, which type of radical is the most stable? **Hint:** Note the substitution patterns of the radicals. The radical structures are as follows: 1. Structure 1: H\ -C\•H 2. Structure 2: H₃C-C\•-H 3. Structure 3: H₂C=CH-C\• 4. Structure 4: H₃C-C\•-CH₃ 5. Structure 5: (CH₃)₃C\• **Examine the stability:** - Structure 1: Primary radical - Structure 2 & 3: Secondary radicals - Structure 4 & 5: Tertiary radicals Type the number corresponding to the most stable radical in the box below. --- **Note:** The stability of radicals is influenced by their substitution pattern, with tertiary radicals typically being more stable than secondary, and secondary more stable than primary due to hyperconjugation and the inductive effect.
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