In compound PCl x F 5 − x , possible values of x are 0 to 5, then calculate value of x 1 + x 2 + x 3 (where x 1 , x 2 , x 3 ......are possible values of x , with zero dipole moment for

Question

In compound PCl x ​ F 5 − x ​ , possible values of x are 0 to 5, then calculate value of x 1 ​ + x 2 ​ + x 3 ​ (where x 1 ​ , x 2 ​ , x 3 ​ ......are possible values of x , with zero dipole moment for given compound).

TestHub · Accepted Answer

PClₓF₅₋ₓ uses sp³d hybridization with a trigonal bipyramidal (TBP) geometry.

Symmetrical structures cancel individual bond dipoles to give a net zero dipole moment ( $μ = 0$ ).

Bent's rule places more electronegative F atoms at axial positions and Cl at equatorial positions. Symmetrical zero-dipole configurations occur at $x = 0$ (PF₅), $x = 3$ (PCl₃F₂), and $x = 5$ (PCl₅).

Sum of possible values: $x_{1} + x_{2} + x_{3} = 0 + 3 + 5 = 8$ .

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