Question

What is the bond order for the PO (phosphorus oxygen) bond in PO₄³⁻?

Group of answer choices

4/3

2

1.5

5/4

1

Answer 1

Ans. 5/4

Bond order of a compound having more than one resonating structures is equal to total number of bonds i.e sigma + π bonds in different resonating structures between two Atoms devide by total number of resonating structures.

Total no of bonds in the compound= 5

Total number of resonating structures= 4

Bond order = 5/4 = 1.25

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