04 Shapes of organic molecules; σ and π bonds

(d) describe sp³ hybridisation, as in ethane molecule, sp² hybridisation, as in ethene and benzene molecules, and sp hybridisation, as in ethyne molecule
(e) explain the shapes of, and bond angles in, the ethane, ethene, benzene, and ethyne molecules in relation to σ and π carbon-carbon bonds
(f) predict the shapes of, and bond angles in, molecules analogous to those specified in (e)