Hyperconjugation involves delocalisation of ______.

(i) electrons of carbon-hydrogen \sigma bond of an alkyl group directly attached to an atom of unsaturated system.

(ii) electrons of carbon-hydrogen \sigma bond of alkyl group directly attached to the positively charged carbon atom.

(iii) \pi-electrons of carbon-carbon bond

(iv) lone pair of electrons

Answers (1)

The answer is the option (i) and (ii)

Explanation: Hyperconjugation means the delocalisation of electrons of the C-H bond of an alkyl group directly attached to an atom of unsaturated system or to an atom with an unshared p orbital. Electrons of C-H bond of the alkyl group enter into the partial conjugation with the attached unsaturated system or with the unshared p orbital. Thus, Hyperconjugation is a permanent effect.

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