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- 1. Multiple ChoiceName the separation method that causes wet clothes on a clothes line to dryChromatographyFiltrationDistillationEvaporation
- 2. Multiple ChoiceWhat is the boiling point of water?0oC100oC80oC95oC
- 3. Multiple Choice
How can we separate an insoluble solid from a liquid?
chromatography
evaporation
filtration
condensation
- 4. Multiple ChoiceThe clear liquid which passes through the filter paper is calledfiltfilterfiltratefiltration
- 5. Multiple ChoiceWhich one of the following is NOT an example of a separation technique?boiling an eggfishing netsurgical masktea strainer
- 6. Multiple Choice
Which one of the following is the name for separation technique in the picture below
distillation
filtration
evaporation
chromatography
- 7. Multiple ChoiceIn the process of evaporation, which one of the following pieces of laboratory apparatus would NOT be used?evaporating basinfilter funnelbunsen burnerWire gauze
- 8. Multiple ChoiceWhich one of the following would you use to separate sand from iron filings?a bar magnetfilter paperdistillation apparatuschromatography paper
- 9. Multiple Choice
Which separation technique is shown below
Evaporation
Simple Distillation
Decantation
Fractional Distilation
- 10. Multiple Choice
Which separation technique is shown below
using a magnet
separating funnel
Centrifuging
Chromatography
- 11. Multiple Choice
Which separation technique is shown below
filtration
crystallization
sublimation
evaporation
- 12. Multiple ChoiceThis picture represents:ElementCompoundMixture of ElementsMixture of Compounds
- 13. Multiple Choice
Which of the following is a disadvantage of evaporation?
It always requires heat
It cannot be used for insoluble solids
All of the solute is recovered
The solvent (water) is not recovered
- 14. Multiple ChoiceA solution that contains a large amount of solute is best described asunsaturatedconcentrateddiluteweak
- 15. Multiple ChoiceThe diagram shows the apparatus for separating soil and water. What are the labelled parts?A = distillate, B = filtrateA = filtrate, B = residueA = residue, B = filtrateA = residue, B = distillate
- 16. Multiple ChoiceNo matter what you do, sand will not dissolve in water, sand is _________ ?dissolvedsolubleinsolubleaqueous
- 17. Multiple ChoiceEvaporation is a process that removes a...solvent (liquid part of solution)solute (material that dissolves in the solvent)distillate (liquid collected after a solution is distilled)impurity
- 18. Multiple ChoiceFiltration can be used to separate...an insoluble solid from a solutiona soluble solid from a solutiona dissolved solid from a solution
- 19. Multiple ChoiceAn example of a mixture isWater and oilCereal and MilkSand and waterAll of the above
- 20. Multiple Choice
You've got copper sulfate pentahydrate dissolved in water and you want to get rid of the water and get crystals. What's the suitable separation technique?
sieving
decanting
crystallization
distillation
- 21. Multiple Choice
You want to separate the components of a felt tip pen. What is the suitable separation technique?
distillation
chromatography paper
decanting
sieving
- 22. Multiple Choice
How would you separate the substances shown in the picture (oil and water)?
by sieving
by decanting
by distillation
by filtering
- 23. Multiple Choice
What is the suitable separation technique for a mixture of iron filings and salt?
sieving
filtering
magnetic separation
- 24. Multiple Choice
What is the suitable technique for a mixture of iron filings and sand?
filtering
magnetic separation
decanting
- 25. Multiple Choice
The picture shows what you get by performing a separation technique. What's its name?
sieving
paper chromatography
decanting
distillation
- 26. Multiple Choice
Which separation technique is this equipment for?
Sieving
Decanting
Paper chromatography
Magnetic separation
Distillation
- 27. Multiple Choice
Which is the separation technique that doesn´t need filter paper?
filtering
decanting
paper chromatography
- 28. Multiple Choice
Sulphur is not soluble in water. If, accidentally, some sulphur drops into a glass of water. Which separation technique would you use to separate it from the water?
by decanting
by filtering
by crystallization
by sieving
- 29. Multiple Choice
Sawdust is not soluble in water. If, accidentally some particles of sawdust drop into a glass of water. How would you separate them from water?
Decanting
Filtering
Sieving
Distillation
- 30. Multiple Choice
Solutions are made up of...?
Solutes and insolubles
Solubles and solutes
Solutes and solvents
Solubles and solvents
- 31. Multiple Choice
If something is insoluble in water, it will not...
Separate after distillation
Dissolve in water
Dissolve in anything except water
Separate after filtration
- 32. Multiple Choice
In a solution of saltwater, what is the solute?
Water
Saltwater
Salt
There is no solute, it is insoluble
- 33. Multiple Choice
When no more solid can be dissolved in a solution, it is now...?
Unsaturated
Full
Saturated
Soaked
- 34. Multiple Choice
What is the difference between filtrate and distillate?
Filtrate is obtained from physical separation, whereas distillate is obtained from chemical separation.
Distillate is a pure liquid, whereas filtrate may be an impure liquid
Filtrate is a liquid, whereas distillate is not a liquid
Distillation is obtained from a solid-solid mixture, whereas filtrate is obtained from a solid-liquid mixture.
- 35. Multiple Choice
Singapore relies on desalination to produce potable water. Which statement(s) about desalination process in SG is/are correct? (Refer to p6 of C4 notes)
I: Salt is removed from seawater
II: Distillation is involved.
III Evaporation is involved.
A. I
B. II
C. I and II
D. I, II and III
- Answer choicesTagsAnswer choicesTags