Class 11 NEET Chemistry Chemical Bonding And Molecular Structure Part 1

SCl4,NH4+,SO42− and PO43− ions are the examples of molecules/ions which are of AB4 and have tetrahedral structure SCl4 is AB4(lone pair) type species.Although the arrangements of five sp3d hybrid orbitals in space is trigonal bipyramidal, due to the presence of one lone pair of electron in the basal hybrid orbital, the shape of AB4 (lone pair) species gets distorted and becomes distorted tetrahedral or see-saw.