Which of the following pairs are iso-structural: (1) CH3- and CH3 (2)NH4+ and BH4- (3)SO42- and BF3 (4)NH2- and BeF2 Share with your friends Share 4 Geetha answered this Option 2 is having same hybridisation and same structure. So NH4+ and BH4- are isostructural. For NH4+Hybridisation H= 12[Valence electron of the central atom + No of surrounding monovalent atom- cation + anion] = 12[5 + 4 -1 + 0] = 82 = 4No of LP =Hybridisation - No ofsurrounding atom = 4 - 4 = 0So the hybridisation is sp3 and the structure is tetrahedralFor BH4-Hybridisation H= 12[Valence electron of the central atom + No of surrounding monovalent atom- cation + anion] = 12[3 + 4 -0 + 1] = 82 = 4No of LP =Hybridisation - No ofsurrounding atom = 4 - 4 = 0So the hybridisation is sp3 and the structure is tetrahedral 5 View Full Answer
