Order of dipole moment in 3,4, 5.
Usually, for dipole moment, we see the electron releasing or withdrawing character of the groups. Here, these questions have been given under Hyperconjugation.
If we reason it out using their electronic effects, then shouldn't both compounds in 3 be non-polar? For 5,shouldn't the order be opposite as both the groups are of opposing natures?
Does Hyperconjugation have anything to do with these questions?