Which of the following hybridization schemes allows the formation of at least one π bond?

The equilibrium constant Kc for the gas-phase thermal decom-position of cyclopropane to propene is 1.0 * 105 at 500 K:

(e) Why is cyclopropane so reactive? (Hint: Consider the hybrid orbitals used by the C atoms.)

What types of orbital overlap occur in cumulene?

What is the hybridization of the central atom of each of the following molecules?

For each molecule shown here, indicate the hybridization of the central atom.

What is the hybridization of the central atom in each of the following:

Label each carbon atom with the appropriate hybridization.

Which hybridization scheme allows the formation of at least one π bond?