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- 1. Multiple Choice
What is the name of this separation technique?
Simple distillation
Fractional distillation
Boiling
Evaporation
- 2. Multiple Choice
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.
- 3. Multiple Choice
Which separation technique is used to obtain pure water from seawater?
Simple distillation
Filtration
Chromatography
Evaporation
- 4. Multiple Choice
What is the name of this separation technique?
distillation
filtration
evaporation
chromatography
- 5. Multiple Choice
What is the physical property on which fractional distillation depends?
different boiling points
different melting points
different solubilities
different densities
- 6. Multiple Choice
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.
- 7. Multiple Choice
Which separation technique is used to obtain pure oxygen from liquid air?
Simple distillation
Filtration
Chromatography
Fractional distillation
- 8. Multiple Choice
Which separation technique is used to obtain salt from seawater?
Simple distillation
Filtration
Chromatography
Evaporation
- 9. Multiple Choice
Which ink is most soluble?
Blue
Red
Yellow
Green
- 10. Multiple Choice
Which ink is a mixture?
Blue
Red
Yellow
Black
- 11. Multiple Choice
Referring to the chromatogram, black ink contains
Blue, red and yellow ink only
Blue, red, yellow and green ink
Blue and yellow ink
Black ink only
- 12. Multiple Choice
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
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