Question

Which of the following are iso-electronic as well as is structural ?
`NO_(3)^(-),CO_(3)^(2-),ClO_(3)^(-),SO_(3)`
A. `NO_(3)^(-),CO_(2)^(2-)`
B. `SO_(3),NO_(3)^(-)`
C. `ClO_(3)^(-),CO_(3)^(2-)`
D. `CO_(3)^(2-),SO_(3)`

Answer 1

Correct Answer - A
`NO_(3)^(-)=1//2[5+0-0+1]=6//2=sp^(2)`
`CO_(3)^(2-)=1//2[4+0-0+2]=6//2=sp^(2)`
`ClO_(3)^(-)=1//2[6+0-0+1]=8//4=sp^(3)`
`SO_(3)=1//2[6+0-0+0]=6//2=sp^(3)`
Only `NO_(3)^(-) and CO_(3)^(2-)` ions iso-electronic as both have 32 electrons.