In the above experiment X is?
- pure nitrogen
- a mixture of nitrogen and oxygen
- a mixture of nitrogen and carbondioxide
- a mixture of oxygen and inert gases
-
a mixture of nitrogen and inert gases
The correct answer is: E
Explanation
Alkaline solutions of pyrogallol absorb oxygen efficiently and are used in determining the oxygen content of gas mixtures.
calcium chloride absorbs sufficient moisture/water from the air.
So,Nitrogen and Inert gases will be left