Transcript Separation Techniques END OF TOPIC QUIZ

Separation Techniques
QUIZ Questions
1
Which technique can be used to
separate 2 liquids with different
boiling points?
Distillation
2
Which liquid, water or alcohol, has a
lower boiling point (and boils first)?
Alcohol
3
Which
technique
separates
substances based on how well they
dissolve in a particular solvent?
Chromatography
4
In felt-tip pen chromatography
which colour of pen was actually a
mixture of the MOST colours of
ink?
Black
5
In the diagram below which spot
was most soluble (i.e. dissolved
best) in the solvent?
Spot A
Spot B
Spot C
x
Spot A
6
In chromatography of biro pen ink
which solvent was best to carry
the ink up the paper?
Meths
7
What do we call a substance that
cannot dissolve in a solvent?
Insoluble
8
Which technique can be used to
separate an insoluble solid from a
liquid?
Filtration
9
Which technique can be used to
separate a soluble solid from the
liquid it is dissolved in?
Evaporation
10
A
B
C
D
E
F
Put the following 6 steps for
separating sand and salt into the
correct order
Heat filtrate to evaporate off the solvent (water)
Pour salt water filtrate into an evaporating basin
on a tripod over a Bunsen burner
Filter to remove the insoluble sand
Place the sand/salt mixture into a beaker and
add water
Allow basin to cool & collect salt
Stir to allow the salt to dissolve in the water
D
F
C
B
A
E