Free Radical Stability
The stability order of free radicals is:
Select the correct option:
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More some basic principles of organic chemistry Practice Questions
When a hydrogen atom is abstracted from different positions of an alkane, which type of carbon free ...
When a hydrogen atom is abstracted from different positions of an alkane, which type of carbon free ...
The correct order of stability of free radicals is:
The correct order of stability of free radicals is:
The stability conferred by hyperconjugation depends on alpha hydrogens; how many hyperconjugative st...
The stability conferred by hyperconjugation depends on alpha hydrogens; how many hyperconjugative st...
A saturated acyclic compound has the molecular formula C_5H_12; how many distinct structural isomers...
A saturated acyclic compound has the molecular formula C_5H_12; how many distinct structural isomers...
Comparing ammonia with methylamine in the gas-free conceptual sense of electron availability, why is...
Comparing ammonia with methylamine in the gas-free conceptual sense of electron availability, why is...
A molecule of 2,3-dibromobutane contains two similarly substituted stereocentres; how many optically...
A molecule of 2,3-dibromobutane contains two similarly substituted stereocentres; how many optically...
For a planar cyclic molecule with a continuous ring of overlapping p orbitals, what number of deloca...
For a planar cyclic molecule with a continuous ring of overlapping p orbitals, what number of deloca...
Four carbocations, allyl, benzyl, tertiary butyl, and ethyl, are to be ranked; which order correctly...
Four carbocations, allyl, benzyl, tertiary butyl, and ethyl, are to be ranked; which order correctly...
Para-nitrophenol is a markedly stronger acid than phenol itself; which electronic interaction is mai...
Para-nitrophenol is a markedly stronger acid than phenol itself; which electronic interaction is mai...
The cyclopentadienyl anion shows unusual stability for a five-membered carbanion; which property bes...
The cyclopentadienyl anion shows unusual stability for a five-membered carbanion; which property bes...
In keto-enol tautomerism, the interconversion between the two forms specifically involves the migrat...
In keto-enol tautomerism, the interconversion between the two forms specifically involves the migrat...
Among carbanions adjacent to different groups, which carbanion is the most stable owing to the stron...
Among carbanions adjacent to different groups, which carbanion is the most stable owing to the stron...
Browse all some basic principles of organic chemistry questions →
About This Question
- Subject
- chemistry
- Chapter
- some basic principles of organic chemistry
- Topic
- free radical stability
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
3° > 2° > 1° > CH₃•
Free Radicals are trivalent carbon species with one unpaired electron. They are stabilized similarly to carbocations:
- Order: 3∘>2∘>1∘>Methyl.
- Reasons:
- Hyperconjugation: Delocalization of the unpaired electron into adjacent σ−C−H bonds. More α−H (found in 3∘) leads to more stable radical structures.
- Resonance: If a radical is adjacent to a double bond (Allylic) or benzene ring (Benzylic), it is exceptionally stable due to delocalization.
This easy difficulty chemistry question is from the chapter some basic principles of organic chemistry, covering the topic of free radical stability. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse some basic principles of organic chemistry questions on RankGuru.