Multiple choice Which of the following compounds is primarily used as an oxidation catalyst? Mercury telluride Molybdenum trioxide Molybdenum disulfide Molybdenum hexacarbonyl Reveal answer Fill a bubble to check yourself B Correct answer Explanation Molybdenum trioxide is a chemical compound with the formula MoO3. It occurs as the rare mineral molybdite. Its chief application is as an oxidation catalyst and as a raw material for the production of molybdenum metal.