Comprehension \#3 (Q. No. 23 to 25 )
Reaction intermediates : Reaction intermediates are short lived species and are highly reactive. They are formed by heterolytic and homolytic bond fission. There are various types of reaction intermediates in
P which the most important are carbocation, carbanion
W and free radical. Carbocation is an organic species in carbanion. Carbanion carries three bond pairs and one lone pair. The stability of carbanion can be increased by negative inductive effect and negative mesomeric effect and delocalisation.
Free radical is a species which have seven electrons in its outermost shell. The stability of free radical can be increased by hyperconjugation and delocalisation, \( +\mathrm{I} \), carbanion. Carbanion carries three bond pairs and one lone pair. The stability of carbanion can be increased by negative inductive effect and negative mesomeric effect and delocalisation.
Free radical is a species which have seven electrons in its outermost shell. The stability of free radical can be increased by hyperconjugation and delocalisation, \( +\mathrm{I} \), \( +\mathrm{M} \).
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