PCl5 exists in nature but PH3 doesnot. why?

Asked by SNEH MANJARI | 26th Jul, 2010, 12:00: AM

Expert Answer:

In case of PCl5 since Chlorine is more electronegative than Phosphorus thus it gets partial positive charge. Thus the orbitals undergo hybridisation.

While in case of PH3, hydrogen is only very slightly more electronegative than Phosphorus so does not pull significantly on the surrounding electronic charge. Phosphorus trihydride is a very highly unstable compound.

Answered by  | 27th Jul, 2010, 10:54: AM

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