1G3 Separation Techniques
Authored by Liyana Kamsani
Science
7th Grade
Used 4+ times
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following methods can be used to obtain pure water from muddy soil?
evaporation
distillation
filtration
chromatography
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which result can be used to show the purity of a sample of water?
It is colourless.
It is odourless.
It boils at a fixed temperature.
It does not leave residue on filter paper.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factor is important for two substances to be separated by paper chromatography?
Both must be liquid.
Both must have different sizes.
Both must have different colours.
Both must have different solubilities in the same solvent.
4.
DRAG AND DROP QUESTION
2 mins • 5 pts
Five different brands of chocolates were analysed using chromatography. The resulting chromatogram is shown.
Which of the chocolate brands 1, 2, 3, 4 or 5 is
(a) Pure? (a) (b)
(b) Mixture? (c) (d) (e)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram shows an experimental set-up to obtain pure water from salt solution.
Which of the following correctly represents the processes occurring at X and at Y?
A
B
C
D
6.
DRAG AND DROP QUESTION
1 min • 2 pts
On the diagram, label X or Y to determine the path of water in and out of the condenser.
Water In - (a)
Water Out - (b)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which real-life application does not involve the use of filtration?
making coffee using coffee makers
purifying water with sand and rocks
separating tea leaves from tea
trapping particles in the nose
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