In Allene (C₃H₄), the carbon atoms exhibit different types of hybridization. The central carbon atom is involved in a double bond with each of the terminal carbon atoms. This results in the following hybridizations:
Hybridization Details
- Central Carbon: The central carbon is sp hybridized because it forms two double bonds, leading to a linear arrangement.
- Terminal Carbons: Each terminal carbon is sp² hybridized as they form one double bond and one single bond, resulting in a trigonal planar shape.
Therefore, the correct answer is B: sp and sp².