Question

hybridization of H2C=CH-CH2-CH3

Answer 1

H2C^a=C^bH-C^cH2-C^dH3

carbon a and b are sp2 hybridized (double bonded)

carbon c and d are sp3 hybridized

explanation:

Carbon has electron configuration 1s² 2s² 2px¹ 2py¹ 2pz⁰ with its 6 electrons.The valence orbitals undergo hybridization to form orbitals of equal energy.

For a carbon,with all single bonds ,one s and three p orbitals form sp3 hybridized orbitals .In the above molecule ,carbon c and d forms four single bonds with these hybrid orbitals as follows:

For the carbon a and b, one s and two p orbitals form sp2 hybridized orbitals,while one p remains to form a pi bond with the left over p in the neighboring carbon(also sp2).Thus, carbon a and b are bonded to each other by a sigma bond ( one of the sp2 orbitals on each carbons bond to each other) as well as by a pi bond.They are doubly bonded to each other.