The correct order of C - 0 bond length among CO , CO_(3)^(2-)and CO_(2

1.	The correct order of C - 0 bond length among CO , CO_(3)^(2-)and CO_(2) is
Answer» `CO lt CO_(3)^(2-) lt CO_(2)` `CO_(3)^(2-) lt CO_(2) lt CO` `CO lt CO_(2) lt CO_(3)^(2-)` `CO_(2) lt CO_(3)^(2-) lt CO` Solution :`CO lt CO_(2) lt CO_(3)^(2-)` All these structures exhibits RESONANCE and can be represented by the FOLLOWING resonating structures More is the single bond character. More will be the bond length. HENCE, the correct order is : CO`lt CO_(2) lt CO_(3)^(2-)`

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