Chemistry · May / June 2016 · Paper 11 · Question 14

Gases can diffuse through porous pots. The diagram shows a beaker full of nitrogen inverted over a porous pot containing carbon monoxide. [diagram] The water level does not move. Which statement explains this?

1. ANitrogen is almost inert.
2. BThe two gases have equal molecular masses.
3. CBoth gases have two atoms in a molecule.
4. DNeither gas is soluble in water.

As printed in the paper