what is hyperconjugation explain with eg of propene - Chemistry - Organic Chemistry Some Basic Principles and Techniques

Question

what is hyperconjugation?explain with eg of propene

Urvashi Yadav · Accepted Answer

Hyperconjugation: It 
involves delocalisation of sigma electrons
of C-H bond of an alkyl group directly attached
to an atom of unsaturated system or an atom with an unshared p
orbital
The hyperconjugating structures of propene are represented as:
Total number of hyperconjugating structures in propene = 3
<img src=
"https://s3mn%20mnimgs%20com/img/shared/userimages/mn_images/image/1(87)%20png"
alt=" ">

what is hyperconjugation?explain with eg. of propene.