Only sp and `sp^(2)` hybrid orbitals are involved in the formation of :

sp^3d^2 hybrid orbitals are

sp^(2) Hybrid orbitals are not present in

A sp^3 - hybrid orbital contains:

In the organic compound CH_(2)=CH-CH_(2)-CH_(2)-C-=CH , the pair of hydridised orbitals involved in the formation of: C_(2) – C_(3) bond is: (a) sp-sp^(2) (b) sp-sp^(3) (c ) sp^(2)-sp^(3) (d) sp^(3)-sp^(3)