Pop Quiz - Separation techniques

True or False: If a mixture contains 2 substances, I only need 1 separating technique to separate them

• True

• False

True or False: Filtration can be used to separate solutions

• True

• False

Select all the examples of mixtures below:

• Air

• Salt water

• Pure honey

• Calcium carbonate

Which of the following statements tells us that a sample of liquid is pure water?

• It is colourless.

• It leaves no residue when filtered.

• It boils at 100^oC.

• It is odourless.

Which separation technique is used to obtain pure water from seawater?

• Simple distillation

• Filtration

• Chromatography

• Evaporation

For paper chromatography to work,

• the dyes must have different boiling points.

• the dyes must have different solubilities in the solvent.

• the starting line on the chromatogram must be drawn using pen.

• the starting line must be below the level of the solvent.

During filtration, the solid that is trapped in the filter paper is called the __________

During filtration, the liquid that has passed through the filter paper is called the __________

Which one of the following is a disadvantage of evaporation to dryness?

• It always requires heat

• It cannot be used for insoluble solids

• All of the solute is recovered

• The solvent (liquid part) is not recovered

Match each instrument to its name

• separating funnel

• 
• distillation equipment

• 
• filter paper

• 
• magnet

• 
• sieve

•