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Karl Ziegler reported that alkenes react with N-bromosuccinimide (NBS) in presence of light to give products resulting from substitution of hydrogen by bromine at the allylic position i.e., the position next to the double bond. Let us consider the halogenation of cyclohexane. Energy level diagram for allylic vinylic and alkylic free redicals is given below: Select the correct statement(s) among the following :A. allylic free radical is stabilised by delocalisationB. Vinylic free radical is stablilised by hyperconjugationC. Alkyl free radicals are stabilised by hyperconjugationD. Alkylic free radical is stabilised by hyperconjugation

Answer» Correct Answer - A::C


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