Solutions

In a solution of salt in water, water is the:

• 1 Solute
• 2 Solvent
• 3 Catalyst
• 4 Precipitate

A solution that cannot dissolve any more solute at a given temperature is called:

• 1 Dilute
• 2 Unsaturated
• 3 Colloidal
• 4 Saturated

The solubility of most solids in water generally:

• 1 Is not affected by temperature
• 2 Increases with temperature
• 3 Decreases with temperature
• 4 Becomes zero when heated

Milk is an example of a:

• 1 Colloid
• 2 Pure substance
• 3 True solution
• 4 Element

Which of these is a suspension?

• 1 Air
• 2 Sugar in water
• 3 Salt water
• 4 Muddy water

10 g of salt is dissolved in 90 g of water. What is the percentage by mass of the solution?

• 1 9 percent
• 2 11 percent
• 3 90 percent
• 4 10 percent

A solution contains 5 g of sugar in 100 g of solution. Its mass percentage is:

• 1 0.5 percent
• 2 20 percent
• 3 5 percent
• 4 50 percent

An aqueous solution is one in which the solvent is:

• 1 Water
• 2 Oil
• 3 Alcohol
• 4 Air

The particles of a true solution:

• 1 Cannot be seen and do not settle
• 2 Settle on standing
• 3 Scatter light strongly
• 4 Can be filtered out

Which of these is a solid dissolved in a liquid?

• 1 Air
• 2 Soda water
• 3 Sugar in water
• 4 Brass