KVPY2018ChemistryGeneral Organic Chemistry
The lower stability of ethyl anion compared to methyl anion and the higher stability of ethyl radical compared to methyl radical, respectively, are due to
Options
- A+ I -effect of the methyl group in ethyl anion, σ → p -orbital conjugation in ethyl radical
- B- I -effect of the methyl group in ethyl anion and σ → σ * conjugation in ethyl radical
- C+ I effect of the methyl group in both cases
- D+ I - effect of the methyl group in ethyl anion and σ → σ * conjugation in ethyl radical
Correct answer
A. + I -effect of the methyl group in ethyl anion, σ → p -orbital conjugation in ethyl radical
Step-by-step solution
The lower stability of ethyl anion C H 3 C H 2 - Compared to methyl anion C H 3 - is because of + I -effect of methyl group of ethyl anion. The higher stability of ethyl radical compared to methyl radical is due to σ - p -orbital conjugation which is known as hyper conjugation in ethyl radical.