Question

Hyper conjugation involves overlap of the following orbitals:

• A. $\sigma -\sigma$
• B. $\sigma -p$
• C. $p-p$
• D. $\pi -\pi$

Answer 1

The correct option is B $\sigma -p$

When a C-H σ-bond is in conjugation with a carbocation, this hyperconjugative effect is observed. A carbocation has a vacant p-orbital. The bonded σ-electron pair of the C-H bond is displaced toward the vacant p-atomic orbital. This increases the electron density in the empty p-Atomic Orbital.