What is the hybridization state of cation part of solid PCl5?
sp3d2
sp2
sp3d
sp3
A
sp2
B
sp3
C
sp3d2
D
sp3d
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Solution
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In solid state, PCl5 prefers to exist as oppositely charged ions like [PCl4]+PCl−6 as ionic bonding enhances the crystalline nature. Also, [PCl4]+=sp3 is tetrahedral while [PCl−6] is octahedral. These structures fit well into each other providing extra stability to the soild structure.
Thus, solid PCl5 exist as [PCl4]+[PCl6]− The cationic part of PCl5 is[PCl4]+. In PCl+4, Phosphorous forms 4σ−bonds.
Hence, the hybridization is sp3.
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