Question

Solid $PC{l}_5$ exists as:

• A. $PC{l}_5$
• B. $PC{l}_4^{+}$
• C. $PC{l}_6^{-}$
• D. $PC{l}_4^{+}$ and $PC{l}_6^{-}$

Answer 1

Answer: (D)

Solid $PC{l}_5$ exists as ${[PC{l}_4]}^{+}{[PC{l}_6]}^{-}.{[PC{l}_4]}^{+}$ has tetrahedral and ${[PC{l}_6]}^{-}$ has octahedral geometry.