Question

Account for the following :
Solid PCl5 is ionic in nature.

Answer 1

Because solid PCl5 breaks it gets converted into PCL4^+ + PCL^6-.So it forms a positive and negative ion , hence it is ionic in nature.

Answer 2

Solid $PCl_5$ is ionic.

Explanation:

• Phosphorous pentachloride ($PCl_5$) is one of the halides of phosphorous which phosphorous forms with chlorine.
• It is prepared by the reaction of white phosphorus with a high amount of chlorine.

$P_4+10Cl_2\rightarrow 4PCl_5$

• In crystalline or solid-state it acts as an ionic compound because in such state it forms two ions namely  $[PCl_4]^+$ as cation and $[PCl_6]^-$ as anion.
• The shape of the cationic part is tetrahedral whereas that of the anionic part is octahedral.

Learn more about such concept

Why in solid state PCl5 behaves as ionic species??

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Draw the structure of PCl5 in solid state.

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