Why formic acid has two differennt co bond length where in sodium formate co bond lenght is 1.27?

Why formic acid has two differennt co bond length where in sodium form

1.	Why formic acid has two differennt co bond length where in sodium formate co bond lenght is 1.27?
Answer» Because in SODIUM formate negative FORMAL CHARGE of oygen GET equally delocalize (i will explain in detail call me at 9709110443)