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In the anion HCOO^- , the carbon-oxygen ...

In the anion `HCOO^-` , the carbon-oxygen bonds are found to be of equal length. This is due to :

A

The anion `HCO O^(-)` has two equivalent resonating strucutres

B

The anion is obtained by removal of a proton from the acid molecules

C

Electronic orbitals of carbon atom are hybridised

D

The C=O bond is weaker than the C-O bond

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