Separation techniques
Quiz
•
Chemistry
•
7th Grade
•
Medium
Isa Cruz
Used 42+ times
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements tells us that a sample of liquid is pure water?
It is colourless.
It leaves no residue when filtered.
It boils at 100oC.
It is odourless.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the name of this separation technique?
distillation
filtration
evaporation
chromatography
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For paper chromatography to work,
the dyes must have different boiling points.
the dyes must have different solubilities in the solvent.
the starting line on the chromatogram must be drawn using pen.
The starting line must be below the level of the solvent.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which separation technique is used to obtain salt from seawater?
Simple distillation
Filtration
Chromatography
Evaporation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which ink is most soluble?
Blue
Red
Yellow
Green
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During filtration, the solid that is trapped in the filter paper is called ..A.. and the liquid that has passed through the filter paper is called ..B..
A: residue B: filtrate
A: residue B: filterate
A: filtrate B: residue
A: filterate B: residue
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Charcoal powder is insoluble in water. When water is filtered, the charcoal powder becomes the _______.
solute
residue
filtrate
solvent
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