Mixtures- separation method

Dyes in water soluble markers may be separated by means of..

• crystallization

• sublimation

• chromatography

• sedimentation

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

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

Water and alcohol are easily separated by distillation because of their

•  different melting points
• different colours
• different densities
• different boiling points

To separate a mixture of soil and water what separation method is used?

• Filtration
• Distillation
• Chromatography
• Evaporation

chromatography separate the mixture of dyes on the basis of their ----------------------------

• density
• solubility
• gravity
• boiling point

Look at the apparatus setup. It cannot be used to separate which of the following mixtures? 

• Marble chips from oil 
• Alcohol and water
• Chalk from sugar solution
• Sand and sea water

Can you separate salt from water using filtration?

• yes
• no

In a coffee machine, the ground coffee is separated from the coffee solution by using..

• sand paper

• filter paper

• toilet paper

• tissue paper

Iron fillings can be separated from iron and Sulphur mixture by

• sedementation
• heating
• magnetic attraction
• seiving

Which one of the following solids is insoluble in water?

• sugar
• sand
• copper sulfate
• salt