PCl5 is highly unstable and in solid state it exists as into [PCl4]+ and [PCl6]- ions. The geometry of [PCl6]- is HomeChemical Bonding MCQsPCl5 is highly unstable and in solid state it exists as into [PCl4]+ and [PCl6]- ions. The geometry of [PCl6]- isQ. PCl5 is highly unstable and in solid state it exists as into [PCl4]+ and [PCl6]- ions. The geometry of [PCl6]- isoctahedraltetrahedralsquare pyramidalsquare planarAnswer: octahedral