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PCl5 exists in two form in solid state..what is the name of this phenomenon?

PCl5 exists in two form in solid state..what is the name of this phenomenon?

Grade:12th pass

1 Answers

Ravleen Kaur
askIITians Faculty 1452 Points
4 years ago

In polar solvents, PCl5 undergoes autoionization. Dilute solutions dissociate according to

PCl5 ⇌ [PCl 4 ]+ Cl− (tetrahedral)

At higher concentrations, a second equilibrium becomes more prevalent:

2 PCl5 ⇌ [PCl 4 ] + and ( [PCl 6 ] - octahedral)

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