Q. In the valence bond theory, hybridization of orbitals is an integral part of the bond formation. Hybridisation consists of mixing or a linear combination of the "pure" atomic orbitals in such a way as to form new hybrid orbitals such as sp,sp2,sp3,sp3d,sp3d3, etc.
Which of the following atomic orbitals does not participate in trigonal bipyramidal hybridization i.e.
sp3d hybridization?