Which of the following represents the correct stability order for the given carbon free radicals? — GOC and Organic Chemistry Basics Chemistry Question
Question
Which of the following represents the correct stability order for the given carbon free radicals?
Answer: A
💡 Solution & Explanation
Stability of free radicals is primarily governed by resonance, then hyperconjugation. Triphenylmethyl is stabilized by extensive resonance over three benzene rings. Diphenylmethyl is next. Allyl radical has resonance but less than benzyl systems. Tertiary butyl is stabilized only by hyperconjugation (9 $\alpha$ -hydrogens).
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