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WorksheetsSeparation Techniques
Total questions: 24
Worksheet time: 24mins
Based on the chromatogram shown, which colour ink is a mixture of dyes?
A pure substance shows ______ spot on a chromatogram.
Two or more substances that are mixed together but not chemically combined is a __________
Name the method of separation
Distillation
Chromatography
Filtration
Evaporation
Distillation uses two changes of state. What are they?
Label part B
Thermometer
Fractionating column
Condenser
Round bottom flask
Label part F
Thermometer
Condenser
Flask
Tube
Label part G
Water
Mixture
Condenser
Thermometer
Label part H
Pure water
Conical Flask
Boiling tube
Mixture
Which of the following process is used to separate insoluble particles from liquids?
Filtration
Extraction
Drying
Sieving
How can you separate coffee beans from the coffee mixture?
Decantation
Sieving
Use of Magnets
Filtration
After filtering, what is left behind on the filter paper?
Filtrate
Residue
Solution
suspension
Which state of matter does this picture show?
Solid
Liquid
Gas
Plasma
Which state of matter does this picture show?
Solid
Liquid
Gas
Plasma
______________________ takes place when a gas changes to a liquid.
condensation
de-evaporation
False
After chromatography, the end result is called a _________
distillate
filtrate
chromatogram
residue
Chromatography separates the mixture of dyes on the basis of their ________.
The diagram shows a chromatogram obtained for 5 dyes.
Dye Q was known to cause cancer.
Which of the following dye(s) is/are safe for use?
X, P and R
A substance is soluble if it can be dissolved.
In paper chromatography, the most soluble solute _____________________ .
does not move from the start point
stays closest to the start point
travels furthest away from the start point
can be found in the middle of the chromatogram
What is the correct image of paper chromatography???
In the image, which dye is the most soluble?
Red
Blue
Purple
