1.

`P_(4)S_(3)` is isostructural and isosteric withA. `Bi_(7)^(3-)`B. `P_(7)^(3-)`C. `P_(4)O_(6)`D. `P_(2)O_(5)`.

Answer» Correct Answer - B
`P_(4)S_(3)` has `15 xx 4 + 16 xx 3` = 108 electrons.
Similarly `P_(7)^(3-)` has `15 xx 7 + 3` = 108 electrons.
So both are isostructural and isosteric (same number of electrons).


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