Question 14
AirA 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
- A.nitrogen
- B.neon
- C.argon
- D.oxygen
Show the answer and explanation
Answer: D (oxygen)
Explanation
Alkaline pyrogallol absorbs oxygen, which is why it is used to find the percentage of oxygen in air.