Separation Techniques Assessment

What is a soluble substance?

• A substance that cannot dissolve in liquid

• A substance that can dissolve in liquid

• A liquid that dissolves other substances

• A mixture of two substances

Which of the following is an example of an insoluble substance?

• Sugar

• Salt

• Sand

• Coffee

What is a solvent?

• The solid that remains after filtration

• A substance that dissolves in liquid

• A mixture of two substances

• A liquid that dissolves other substances

In a salt solution, what is the solute?

• Water

• Salt

• The mixture

• The container

Which separation technique would you use to separate iron filings from sand?

• Filtration

• Evaporation

• Magnetic attraction

• Distillation

What is the liquid that passes through the filter paper called?

• Residue

• Solution

• Solvent

• Filtrate

During filtration, what is the solid that remains on the filter paper called?

• Filtrate

• Solution

• Residue

• Solute

Which method would you use to obtain salt from salt water?

• Distillation

• Filtration

• Evaporation

• Chromatography

What happens during evaporation of a salt solution?

• The salt evaporates leaving water behind

• Both salt and water evaporate

• The water evaporates leaving salt behind

• Nothing happens

What is distillation used for?

• Separating colored components

• Separating magnetic materials

• Obtaining a pure liquid from a mixture

• Separating insoluble solids from liquids