Which of the following pairs of ions are isoelectronic and isostructural?

Options

A. `CIO_(3)^(-P), SO_(3)^(2-)`
B. `CIO_(3)^(-2), SO_(3)^(2-)`
C. `CIO_(3)^(-), CO_(3)^(2-)`
D. `SO_(3)^(2-),NO_(3)^(-)`

Answer

1

Explanation

Isoelectronic and isostructural species have same number of valence electrosn a(As well as total number of electrons )And identical shapes `//`geomerties.
`{:("Species" ,"Total no. of valence electrons"),(ClO_(3)^(-),7+3(6)+1=26),(SO_(3)^(2-),6+3(6)+2=26),(CO_(3)^(2-),4+3(6)+2=24),(NO_(3)^(-),5+3(6)+1=24):}`
Therfore `ClO_(3)^(-)` and `SO_(3)^(2-)` are isoelectronic both have tetrahedral geometrical and trigonal pyramidal shapes

Such species also have identical bond orders. The question can also be credited to chemical bonding chapter.