Decanting and Filtration Quiz

What is the main purpose of decanting?

• To mix two liquids

• To separate a solid from a liquid by pouring off the liquid

• To dissolve a solid in a liquid

• To heat a mixture

Which of the following is an example of decantation?

• Filtering coffee

• Pouring water off cooked peas

• Boiling saltwater

• Stirring sugar into tea

What is the solid left behind after decanting called?

• Filtrate

• Residue

• Solvent

• Solution

Filtration is used to separate:

• Two dissolved solids

• A solid that does not dissolve in a liquid

• Two miscible liquids

• Gases from liquids

What passes through the filter paper during filtration?

• Residue

• Filtrate

• Solute

• Sediment

Why can’t filtration separate a colloid?

• Colloid particles are too small

• Colloids are homogeneous

• Filter paper dissolves in colloids

• Colloids are already pure

Which mixture CANNOT be separated by filtration?

• Sand and water

• Muddy water

• Saltwater

• Coffee grounds and water

What is the key difference between decanting and filtration?

• Decanting uses heat, filtration does not

• Filtration uses a filter, decanting does not

• Decanting works for gases, filtration does not

• Filtration is faster than decanting

In filtration, the residue is:

• The liquid collected

• The solid trapped on the filter paper

• The dissolved solute

• The solvent

Which method would be best to separate tea leaves from brewed tea?

• Decanting

• Filtration

• Evaporation

• Distillation