Question

In solid state, $PC{l}_5$ exists as

• A. $[PCl4{]}^{-}$ and $[PC{l}_7{]}^{+}ions$
• B. covalent $PC{l}_5$ molecules
• C. $[PC{l}_4{]}^{+}$ and $[PC{l}_6{]}^{-}ions$
• D. $[PC{l}_3{]}^{2-}$ and $[PC{l}_5{]}^{2+}ions$

Answer 1

Answer: (C)

In solid state, $PC{l}_5$ exists as ionic solid containing tetrahedral $[PC{l}_4{]}^{+}$ cation and octahedral $[PC{l}_6{]}^{-}$ anion.