A quantity of air was passed through a weighed amount of alkaline pyrogallol. An increase in the weight of the pyrogallol would result from the absorption o...

A quantity of air was passed through a weighed amount of alkaline pyrogallol. An increase in the weight of the pyrogallol would result from the absorption of?

Answer Details

Alkaline pyrogallol is a substance used to absorb oxygen from the air. When air is passed through it, the oxygen in the air is absorbed by the pyrogallol, causing an increase in its weight. Therefore, the correct answer to the question is oxygen. Nitrogen, neon, and argon are all gases that are present in the air, but they do not react with pyrogallol in this way.