1.

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

Answer»

`CO_(3)^(2-)LT CO_(2)lt CO`
`CO_(2)lt CO_(3)^(2-)lt CO`
`CO lt CO_(3)^(2-)lt CO_(2)`
`CO lt CO_(2)lt CO_(3)^(2-)`

Solution :`CO^(-)` has TRIPLE BOND, `CO_(2)` has about 1.5 bond and `CO_(3)^(2-)` ION has 1.33 bond.


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