Which of the following are iso-electronic as well as iso-structural ?
`NO_(3)^(-),CO_(3)^(2-),ClO_(3)^(-),SO_(3)`

Options

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

Answer

A

Explanation

`NO_(3)^(-) and CO_(3)^(2-)` both have 32 electrons, central atom `sp^(2)` hybridized, triangular planar.