Hybridised Orbital

Resolved Question

Which of the following compounds contain an sp2 hybridised carbon atom?

a) n-butane
b) propanal
c) propanol
d) 2,3-dimethylheptane

by joeyeehu...


Chemistry

In sp2 hybridised carbon atom, it must be bonded to 3 groups or atoms. Normally, the carbon atom must form a double bond in order to be bonded to three groups/atoms instead of four.
Only propanal contains an sp2 hybridesed orbitals.

In CH3CH2CHO, the first carbon is sp3 hybridesed ( it is bonded to four groups/atoms, ie, three hydrogen and CH2CHO).

The second carbon is also sp3 hybridised. ( one CH3, two H and one CHO)The third carbon is sp2.( one CH3CH2, one H and one O)

This rule only applies to carbon atom.