The correct order of increasing C — O bond lengths in CO, CO32- and CO2 is:

Question

The correct order of increasing C — O bond lengths in CO, CO32- and CO2 is: (A) CO2-3 < CO2 < CO (B) CO < CO32- < CO2 (C) CO2 < CO2-3 < CO (D) CO < CO2 < CO2-3

Tardigrade Admin · Accepted Answer

Structures of CO2, CO and CO2-3 are <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/7fd7be506a9a022a12e99d48234bc731-.jpeg" /> Bond multiplicity decreases the bond length. Thus, CO with a triple bond will have shortest C — O bond length. CO2 with a double bond will have a larger C — O bond length. CO|" is a resonance hybrid of three structures with a C — 0 length of more than a C — O double but less than a C — O single bond. Thus, C — O bond length is maximum in CO2-2.

Q. The correct order of increasing $C — O$ bond lengths in $CO, C O_{3}^{2 -}$ and $C O_{2}$ is:

$C O_{2 -}^{3} < C O_{2} < CO$

$CO < C O_{3}^{2 -} < C O_{2}$

$C O_{2} < C O_{3}^{2 -} < CO$

$CO < C O_{2} < C O_{3}^{2 -}$

Q. The correct order of increasing C—O bond lengths in CO,CO32−​ and CO2​ is:

CO2−3​<CO2​<CO

CO<CO32−​<CO2​

CO2​<CO32−​<CO

CO<CO2​<CO32−​

Q. The correct order of increasing $C — O$ bond lengths in $CO, C O_{3}^{2 -}$ and $C O_{2}$ is:

$C O_{2 -}^{3} < C O_{2} < CO$

$CO < C O_{3}^{2 -} < C O_{2}$

$C O_{2} < C O_{3}^{2 -} < CO$

$CO < C O_{2} < C O_{3}^{2 -}$