Chemical BondingValence Electrons136Choose the best answerThe total number of valence electrons in PH₄⁺ is:A8B10C9D12 Like 0 Discuss 0Share
Chemical BondingMolecular Geometry and Planarity137Choose the best answerWhich molecule is not planar?ABenzeneBFormaldehydeCBF₃DPropane Like 0 Discuss 0Share
Chemical BondingLewis Acids and Bases138Choose the best answerWhich species is NOT a Lewis acid?ABF₃BH₂OCAlCl₃DFeCl₃ Like 0 Discuss 0Share
Chemical BondingMolecular Geometry and Lone Pairs139Choose 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 BondingMolecular Geometry140Choose the best answerWhich species has a molecular shape different from the other three?ASO₄²⁻BNH₄⁺CClO₄⁻DXeF₄ Like 0 Discuss 0Share