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Therefore, the bond is polar.Īs a result, the oxygen atom has a partial negative charge, and the carbon atom has a partial positive charge. However, electrons are shared unequally between the two atoms because carbon has a lower electronegativity value than oxygen. The electronegativity difference between carbon and oxygen is 0.5, which falls in the covalent bonding range. As a result, the electrons in the bond are not shared equally between the two atoms. The oxygen atom is more electronegative than the carbon atom, which means that it attracts the shared electrons in the bond more strongly than the carbon atom. In carbon monoxide, the carbon atom is bonded to the oxygen atom by a covalent bond. It is the hypothetical charge that an atom would have if all its bonds to other atoms were 100% ionic. The oxidation state of an atom in a molecule is a measure of the degree of oxidation of that atom. To understand the oxidation state of carbon in carbon monoxide, we need to first understand what oxidation state means.

The oxidation state of carbon in carbon monoxide is -2. It is a highly toxic gas and can be lethal when inhaled in high concentrations. Oxidation State of Carbon in Carbon MonoxideĬarbon monoxide (CO) is a colorless and odorless gas that is produced by the incomplete combustion of carbon-based fuels.