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

Options

A. `SO_3^(2-), NO_3^(-)`
B. `ClO_3^(-), SO_3^(2-)`
C. `CO_3^(2-), NO_3^(-)`
D. `ClO_3^(-) , CO_3^(2-)`

Answer

B, C

Explanation

In `SO_3^(2-), ClO_3^(-)` No. of electrons = 42
Shape : Pyramidal
(c) In `CO_3^(2-), NO_3^(-)` No. of electrons = 32
Shape : Trigonal planar