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 (a)  

During filtration, the liquid that has passed through the filter paper is called the (a)  

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

• magnet

• 
• distillation equipment

• 
• filter paper

• 
• separating funnel

• 
• sieve

•