Chemical BondingMolecular Geometry and Lone Pairs1Choose 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