Chemical BondingVSEPR Theory and Electron-Pair Repulsion176Choose 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 Planarity177Choose the best answerWhich molecule is not planar?ABenzeneBFormaldehydeCBF₃DPropane Like 0 Discuss 0Share
Chemical BondingLewis Acids and Bases178Choose the best answerWhich species is NOT a Lewis acid?ABF₃BH₂OCAlCl₃DFeCl₃ Like 0 Discuss 0Share
Chemical BondingMolecular Geometry and Lone Pairs179Choose 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
BUMHS MDCAT 2025 Chemistry#Chemical Bonding#Dipole Moment180Choose the best answerNH₃ has net dipole moment but BF₃ has zero net dipole moment because of? (BUMHS MDCAT 2025)AB is less E.N than NBF is more E.N than NCBF₃ is pyramidalDNH₃ is pyramidal Like 0 Discuss 0Share