Question

Which of the following solutions will have the maximum lowering of vapour pressure at 300 K?

Options

• 1 M CaCl₂

• 1 M NaCl

• 1 M Phenol

• 1 M sucrose

Answer 1

1 M CaCl₂

Explanation:

The substance with the greatest number of particles in solution will provide the greatest reduction in vapour pressure.