The component of air that removed when air is bubbled into alkaline pyrogallol solution is

The component of air that is removed when air is bubbled into alkaline pyrogallol solution is oxygen. Alkaline pyrogallol solution is a reagent that is used to absorb oxygen from a gas mixture. When air is bubbled into this solution, the oxygen present in the air reacts with pyrogallol and gets absorbed, forming a brown precipitate of the oxidized pyrogallol. The other components of air, such as nitrogen, carbon dioxide, water vapor, and other gases, remain unchanged and do not react with pyrogallol. Therefore, the correct answer is: - Oxygen