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KCET2015ChemistryThermodynamics (C)

Which of the following compound possesses the " ( C - H ) " bond with the lowest bond dissociation energy?

Options

  1. AToluene
  2. BBenzene
  3. Cn-pentane
  4. D2,2-dimethyl propane

Correct answer

A. Toluene

Step-by-step solution

In toluene, after the dissociation of ( C - H ) bond, the carbocation thus formed (i.e., benzyl carbocation) is highly stabilized byresonance. Therefore, bond dissociation energy of ( C - H ) bond in toluene will be minimum.

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