1. A beaker of nitrogen was inverted over a porous pot containing carbon monoxide as shown. The water level did not change. What is the reason for this?
A Both gases are diatomic.
B Nitrogen is an unreactive gas.
C The gas particles are too large to pass through porous pot.
D The two gases have the same density.
2. Hydrogen chloride is very soluble in water, whereas chlorine is only slightly soluble in water. Both gases can be dried using concentrated sulfuric acid. Which diagram represents the correct method of obtaining dry chlorine from damp chlorine containing a small amount of hydrogen chloride?