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WorksheetsSec 3 G2/3 Separation Techniques
Total questions: 12
Worksheet time: 16mins
Which of the following mixtures can be separated using a magnet?
Aluminium and rubber
Copper and styrofoam
Iron and sulfur
Steel and nickel
Some students are conducting a paper chromatography experiment. Which physical property allows them to separate the components of a mixture?
Difference in boiling point
Difference in colour
Difference in density
Difference in solubility in the same solvent
Take a look at this chromatogram with spots of five different inks. Can you figure out how many different dyes were used to make the five inks?
3
4
5
12
Identify the dye which is the most soluble in this solvent.
Substance 1
Substance 2
Substance 3
Substance 4
Which of the following processes is not involved in the treatment of wastewater to produce NEWater in Singapore?
Microfiltration
Reverse osmosis
Simple distillation
Ultraviolet disinfection
Why do we have to draw the start line using a pencil?
Scarlett and her sister used the apparatus shown to separate a mixture of sand and water that they collected from the beach. What is the name of the separation technique used?
(a)
Name apparatus A
(a)
Name apparatus B.
(a)
This setup is used to obtain pure water from a sample of seawater. Name the separation technique involved.
(a)
Draw arrows to show how cold water enters and leaves the condenser.
State the purpose of the condenser.
