In BCl3 molecule, the covalent bond of B-Cl was generated by( C )(A)one of sp2 hybrid orbitals of B overlapping 3s orbital of Cl (B)one of 2p orbitals of B overlapping one of 3p orbitals of Cl (C)one of sp2 hybrid orbitals of B overlapping one of 3p orbitals of Cl (D)one ...