What is the hybridization at the two central carbon atoms of 2-butene?

1 Answer
Oct 19, 2015

SP^2SP2 hybridisation

Explanation:

The molecular formula for 2- butene can be written as

CH_3 - CH = CH - CH_3 CH3CH=CHCH3

count the carbon from left to right increasing order

First and fourth carbon formed covalent bond with three hydrogen and a carbon atom. In these positions carbon has undergone by SP^3SP3 hybridsation giving 4 hybrid orbital, hence forming four sigma bonds

Second and third (central carbon) carbon has three sigma bonds (two hydrogen and carbon) and one pi bond. Three sigma bonds are formed due to SP^2SP2 hybridization. Pz orbital from each central carbon atom under go lateral over lap giving rise a pi bond between second and third carbon atom