The correct increasing order of C - O bond lengths amongCO,CO2−3 and CO2 is
A
CO2−3<CO2<CO
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B
CO2<CO2−3<CO
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C
CO<CO2−3<CO2
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D
CO<CO2<CO2−3
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Solution
The correct option is DCO<CO2<CO2−3
Due to resonance single bond acquires double bond character and double bond acquires single bond character, and triple bond is shortest followed by double bond and single bond. Therefore answer is D CO<CO2<CO2−3