Separation Techniques Quiz

Which method is most suitable to separate iron filings from a mixture of sand and iron filings?

• Filtration

• Magnetic separation

• Decantation

• Sedimentation

Which separation technique relies on the different boiling points of substances?

• Filtration

• Evaporation

• Distillation

• Sedimentation

In chromatography, substances are separated based on their:

• Boiling points

• Solubility and movement in a medium

• Particle size

• Density

Which process is used to remove suspended impurities from muddy water?

• Sedimentation and decantation

• Distillation

• Magnetic separation

• Chromatography

The method of separating salt from seawater is:

• Sedimentation

• Evaporation

• Filtration

• Magnetic separation

In fractional distillation, the liquids being separated must have:

• Equal boiling points

• Different boiling points

• Different colours

• The same density

Which apparatus is essential for filtration?

• Separating funnel

• Filter paper and funnel

• Bunsen burner

• Liebig condenser

What is the role of alum in water purification?

• To kill germs

• To help in coagulation of particles

• To evaporate water

• To condense vapours

Which separation technique is used in perfume manufacturing?

• Paper chromatography

• Fractional distillation

• Steam distillation

• Magnetic separation

Which separation technique is used to separate oil and water?

• Filtration

• Separating funnel

• Evaporation

• Magnetic separation