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Question

Chemistry Question on Group 13 Elements

Solid PCl5PC{{l}_{5}} exists as:

A

PCl5PC{{l}_{5}}

B

PCl4+PCl_{4}^{+}

C

PCl6−PCl_{6}^{-}

D

PCl4+PCl_{4}^{+} and PCl6−PCl_{6}^{-}

Answer

PCl4+PCl_{4}^{+} and PCl6−PCl_{6}^{-}

Explanation

Solution

Solid PCl5PC{{l}_{5}} exists as [PCl4]+[PCl6]−.  [PCl4]+{{[PC{{l}_{4}}]}^{+}}{{[PC{{l}_{6}}]}^{-}}.\,\,{{[PC{{l}_{4}}]}^{+}} has tetrahedral and [PCl6]−{{[PC{{l}_{6}}]}^{-}} has octahedral geometry.