Separation Techniques Quiz

What is the name of the liquid that passes through the filter paper during filtration?

• Residue

• Filtrate

• Precipitate

• Distillate

What is the process called when an insoluble solid settles at the bottom of a liquid and is removed by pouring off the liquid?

• Filtration

• Decanting

• Crystallization

• Distillation

Which separation technique is best for removing large sand particles from water?

• Filtration

• Chromatography

• Simple distillation

• Sublimation

In centrifugation, how are small suspended particles separated from a liquid?

• By filtering through fine filter paper

• By boiling the liquid

• By spinning the suspension at high speed

• By evaporating the liquid

Which component remains on the filter paper after filtration?

• Distillate

• Filtrate

• Residue

• Solvent

Which method is used to separate a dissolved solid from a solution by heating it until only the solid remains?

• Filtration

• Evaporation

• Distillation

• Chromatography

Which separation technique is used to obtain pure salt crystals from seawater?

• Filtration

• Crystallization

• Centrifugation

• Paper chromatography

Which method is most suitable for separating two miscible liquids with different boiling points?

• Simple distillation

• Filtration

• Decanting

• Chromatography

In crystallization, why is the solution allowed to cool after heating?

• To evaporate all the liquid quickly

• To allow crystals to form as solubility decreases

• To ensure the liquid does not evaporate

• To mix the substances more effectively

Why is a saturated solution required in crystallization?

• To ensure impurities settle at the bottom

• To allow maximum solute to dissolve before cooling

• To remove any undissolved solids

• To speed up evaporation