Which of the following compounds possesses C-H bond with the lowest bond dissociation energy ?

Question

Which of the following compounds possesses C-H bond with the lowest bond dissociation energy ? (A) Toluene (B) Benzene (C) n-Pentane (D) 2, 2-Dimethylpropane

Tardigrade Admin · Accepted Answer

The C-H bond of the methyl group in toluene has lowest bond dissociation energy (both for homolytic and heterolytic cleavage) as benzyl carbocation as well as benzyl free radical are highly stable due to resonance or hyperconjugation.

Q. Which of the following compounds possesses C-H bond with the lowest bond dissociation energy ?

Toluene

Benzene

n-Pentane

2, 2-Dimethylpropane

The $C - H$ bond of the methyl group in toluene has lowest bond dissociation energy (both for homolytic and heterolytic cleavage) as benzyl carbocation as well as benzyl free radical are highly stable due to resonance or hyperconjugation.

Q. Which of the following compounds possesses C-H bond with the lowest bond dissociation energy ?

Toluene

Benzene

n-Pentane

2, 2-Dimethylpropane

The C−H bond of the methyl group in toluene has lowest bond dissociation energy (both for homolytic and heterolytic cleavage) as benzyl carbocation as well as benzyl free radical are highly stable due to resonance or hyperconjugation.

The $C - H$ bond of the methyl group in toluene has lowest bond dissociation energy (both for homolytic and heterolytic cleavage) as benzyl carbocation as well as benzyl free radical are highly stable due to resonance or hyperconjugation.