Oxidation number

Chemistry Level 1

The oxidation state, often called the oxidation number, is an indicator of the degree of oxidation of an atom in a chemical compound. Which of the following options states in correct order the oxidation numbers of the underlined atoms in the chemical reaction equation below? \[\underline{\text{Fe}}_2\text{O}_3+3\underline{\text{C}}\text{O} \to 2\underline{\text{Fe}}+3\underline{\text{C}}\text{O}_2\]

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Oxidation number

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 6 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.