One sp3-hybridized carbon atom is present in the structure of cyclopentadiene.
Cyclopentadiene is an organic compound (diene) with the formula C₅H₆ (see the picture below).
In cyclopentadiene there is four carbon atoms with sp2 hybridized carbon and one carbon atom with sp3-hybridized carbon.
When carbon atom is sp2 hybridized, it has three sp2 orbitals and one p orbital. Carbon has four bonds in total (two single and one double bond)
In sp3 hybridization hybridize one s-orbital and three p-orbitals of carbon atom. Carbon atom with sp3 hybridization has four single bonds. In the picture below, that is an an atom on the top.
More about hybridization: brainly.com/question/22765530
#SPJ4
