Question

pls explain hyperconjugation with an appropriate example!​

Answer 1

Hyperconjugation is the stabilising interaction that results from the interaction of the electrons in a σ-bond (usually C-H or C-C) with an adjacent empty or partially filled p-orbital or a π-orbital to give an extended molecular orbital that increases the stability of the system.
Hyperconjugation Examples

Ethyl carbocation. ...Nitromethane. ...Acetonitrile and propyne. ...Toluene. ...Stability of unsaturated hydrocarbons. ...Stability of reaction intermediates. ...Anomeric effect.

Answer 2

In organic chemistry, hyperconjugation is the interaction of the electrons in a sigma orbital with an adjacent empty non-bonding or antibonding σ or π orbital to give an extended molecular orbital. Increased electron delocalization associated with hyperconjugation increases the stability of the system.

For example, Hyperconjugation is suggested as a key factor in shortening of sigma bonds (σ bonds). For example, the single C–C bonds in 1,3-butadiene and Propyne are approximately 1.46 angstrom in length, much less than the value of around 1.54 Å found in saturated hydrocarbons.