Separating Mixtures

This method is a technique used in separating a less-dense substance from a denser one.

• decantation

• evaporation

• distillation

• filtration

This involves using a strainer or a big screen to separate the components of solid mixtures.

• chromatography

• distillation

• sieving

• physical manipulation

What method of separating mixtures is shown in the picture?

• filtration

• distillation

• physical manipulation

• use of magnet

This method is used to separate metals from non metals.

• use of magnet

• physical manipulation

• sieving

• chromatography

This method is used in separating soluble solid from a liquid such as salt from water.

• evaporation

• distillation

• decantation

• filtration

This method is utilized in industries like junkyards to remove metal scraps from other materials.

• chromatography

• physical manipulation

• use of magnet

• distillation

Two or more substances mingled together, but not chemically combined are known as a

• residue
• solution
• distillate
• mixture

Sand and gravel may be separated from each other through using..

• a filter funnel
• a sieve
• an evaporating basin
• a distillation

Which one of the following would you use to separate sand from iron filings?

• a bar magnet
• filter paper
• chromatography paper
• alum

Sodium chloride can be separated from rock salt by first adding water to the mixture to dissolve the sodium chloride. The separation then takes place in two stages:

• evaporation followed by filtration
•  distillation followed by decanting
• filtration followed by evaporation
• filtration followed by decanting