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Separation Techniques
Test Description: The objective of this game is to identify the common separation techniques.
Instructions: Answer all questions to get your test result.
1) Suggest a separation technique to separate a mixture of sand and iron fillings.
A
Hand sorting
B
Magnetic sorting
C
Filtration
D
Decantation
2) Sand and water form a heterogeneous mixture. This mixture can be separated by:
A
Hand sorting
B
Magnetic sorting
C
Filtration
D
Screening
3) Indicate the separation technique used to separate a mixture of two immiscible liquids like oil and water.
A
Centrifugation
B
Hand sorting
C
Decantation
D
Filtration
4) Decantation is limited to:
A
Solid-Solid heterogeneous mixtures.
B
Solid-Liquid homogeneous mixtures.
C
Solid-Liquid or Liquid-Liquid heterogeneous mixtures.
D
Liquid-Liquid homogeneous mixtures.
5) Choose the correct statement that describes centrifugation.
A
It is used to separate homogeneous mixtures.
B
It can be used to separate oil-water mixture.
C
It is not an efficient separation technique.
D
It is used to speed up the settling of a solid.
6) Give the name of the separation technique used to separate (lentils-small stones) mixture.
A
Hand sorting
B
Filtration
C
Distillation
D
Decantation
7) Choose the statement that describes the filtration of muddy water.
A
Mud is retained on filter paper and is called filtrate.
B
Water is retained on filter paper and is called filtrate.
C
Water passes through filter paper and is called residue.
D
Water passes while mud is retained on filter paper.
8) Indicate the part of the mixture (sugar, sand and water) that passes through filter paper.
A
Sand
B
Water
C
Sugar
D
Sugar and water
9) The aim of crystallization is:
A
to collect solvent.
B
to collect both solvent and solute.
C
to collect solute in the form of crystals.
D
to collect solvent or solute.
10) Identify the separation technique used to separate salt-water mixture.
A
Decantation
B
Filtration
C
Distillation
D
Centrifugation.
*select an answer for all questions
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