The correct order of increasing C-O bond length of CO, CO32- , CO2 is
(a) CO32- < CO2 <CO
(b) CO2 <CO32- <CO
(c) CO < CO32- <CO2
(d) CO < CO2 < CO32-
**Correct option(d) CO < CO2 < CO32-**
Explanation:
Bond length ∝1/bond order
Bond order : CO32- < CO2<CO
Bond order in CO = 3 (with the help of molecular orbital theory) Bond order in CO2.
