Grade 12th passIIT JEE Entrance Exam
Rank the bond dissociation energies of the bonds indicated. please provide explanation of your answer?
Rank the bond dissociation energies of the bonds indicated. please provide explanation of your answer?
1 Answer
Arun
The dissociation of C−H bond will result into a carbon radical. Primary carbon radical is the least stable whereas tertiary one is the most stable as tertiary carbon radical has stabilizing +I effect of 2−methyl groups.
Hence, dissociation of a primary carbon-hydrogen bond will be difficult, requiring the most energy. In case of tertiary carbon, this energy required will be least.
Therefore, order of bond dissociation energy is- 3
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