Hyperconjugation involves overlap of the following orbitals

1. $\sigma-\sigma$
2. $\sigma-p$
3. $p-p$
4. $\pi-\pi$

Solution

Hyperconjugation is one kind of delocalisation of $\sigma(\mathrm{C}-\mathrm{H})$ bonded electron to unshared p-orbital.

Asked in: JEE Advanced 2008 (Paper 1)

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