Welcome to the Quiz!
This quiz contains 9 questions from a mix of 1 subtopics.
What technique is used to separate the different dyes in an ink mixture?
distillation
evaporation
chromatography
filtration
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What is simple distillation used for?
to separate rock salt
to separate a water from a solution
to separate different dyes in an ink mixture
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What is fractional distillation used for?
to separate mixtures of liquids with different boiling points
to separate rock salt
to separate different dyes in an ink mixture
to separate a water from a solution
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What is the boiling point of pure water?
200°C
50°C
0°C
100°C
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What can scientists use to check the purity of a separated substance?
colour
size
boiling point
mass
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What remains in the original flask after simple distillation?
the solvent
impurities
the condenser
pure water
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In chromatography, dyes that are more in the solvent move further up the paper.
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Describe the process of separating rock salt using filtration and evaporation.
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Describe the process of fractional distillation and how it separates mixtures of liquids with different boiling points.
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