The bond length of C = O bond in CO is 1.20 Ao and in CO2 it is 1.34Ao. Then C = O bond length in CO32− will be

In CO32−, due to resonance, C = O bond length is in between triple and double bond, i.e. in between 1.2 and 1.34. Thus, answer is 1.29 Ao.

In CO32−, due to resonance, C = O bond length is in between triple and double bond, i.e. in between 1.2 and 1.34. Thus, answer is 1.29 Ao.

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The bond length of C = O bond in CO is 1.20 $\overset{o}{A}$ and in CO₂ it is 1.34 $\overset{o}{A}$ . Then C = O bond length in ${CO}_{3}^{2 -}$ will be

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1.29 $\overset{o}{A}$

1.34 $\overset{o}{A}$

0.95 $\overset{o}{A}$

1.50 $\overset{o}{A}$

answer is C.

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In ${CO}_{3}^{2 -},$ due to resonance, C = O bond length is in between triple and double bond, i.e. in between 1.2 and 1.34.
Thus, answer is 1.29 $\overset{o}{A}$ .

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