Question

The presence of soluble salt in water:

• A. increases its melting point
• B. decreases its boiling point
• C. increases its boiling point
• D. has no effects on its boiling point

Answer 1

The correct option is C increases its boiling point

Any solute in water raises the boiling point, so as long as solute stays in liquid water. As salt is dissolved, water molecules needs more energy to produce enough pressure to escape the boundary of liquid. So boiling point of water is increased.