The correct order of increasing `C-O` bond length of `CO, CO_(3)^(2-)` and `CO_(2)` is :

Options

A. `CO_(3)^(2-)lt CO_(2)lt CO`
B. `CO_(2)lt CO_(3)^(2-)lt CO`
C. `CO lt CO_(3)^(2-)lt CO_(2)`
D. `CO lt CO_(2)lt CO_(3)^(2-)`

Answer

D

Explanation

`CO^(-)` has triple bond, `CO_(2)` has about 1.5 bond and `CO_(3)^(2-)` ion has 1.33 bond.