Chemical BondingVSEPR Theory and Electron-Pair Repulsion151Choose the best answerAccording to VSEPR theory, electron-pair repulsions decrease in the order:ALP–LP > LP–BP > BP–BPBLP–BP > LP–LP > BP–BPCBP–BP > LP–LP > LP–BPDBP–BP > LP–BP > LP–LP Like 0 Discuss 0Share
Chemical BondingMolecular Geometry and Planarity152Choose the best answerWhich molecule is not planar?ABenzeneBFormaldehydeCBF₃DPropane Like 0 Discuss 0Share
Chemical BondingLewis Acids and Bases153Choose the best answerWhich species is NOT a Lewis acid?ABF₃BH₂OCAlCl₃DFeCl₃ Like 0 Discuss 0Share
Chemical BondingMolecular Geometry and Lone Pairs154Choose the best answerWhy is BCl₃ trigonal planar whereas PH₃ is trigonal pyramidal?ABCl₃ has three bond pairs and no lone pair on B, whereas PH₃ has three bond pairs and one lone pair on PBBCl₃ is ionic whereas PH₃ is covalentCPH₃ contains a double bondDBoron has a larger atomic radius than phosphorus Like 0 Discuss 0Share
Chemical BondingDipole Moment155Choose the best answerWhich molecule has the greatest dipole moment among the following?AHClBNH₃CH₂SDH₂Se Like 0 Discuss 0Share