Methods Of Separation: Chemistry Quiz
15 Questions
| Total Attempts: 395
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Questions and Answers
- 1.Methods of separation for the components of solid-solid.
- A.
Dissolution
- B.
Filtration
- C.
Evaporation
- D.
Crystallization
- E.
All above
- 2..Methods of separation for the components of solid-liquid.
- A.
Dissolution
- B.
Filtration
- C.
Evaporation
- D.
Fractional distillation
- 3.Methods of separation for the components of liquid-liquid. (miscible)
- A.
Dissolution
- B.
Filtration
- C.
Evaporation
- D.
Fractional distillation
- 4.Methods of separation for the components of liquid-liquid. (immiscible)
- A.
Separating funnel
- B.
Filtration
- C.
Evaporation
- D.
Distillation
- 5.Find the Rf value if y (start line-solvent front) is 10cm and the x (start line-spot) is 5cm.
- A.
0.4
- B.
0.5
- C.
0.6
- D.
0.7
- 6.During filtration, the soild collected in the filter paper is called the_______.
- A.
Filtrate
- B.
Rubbish
- C.
Residue
- D.
Solid
- 7.________ separates a dissolved solid from a solution as well-formed crystals.
- A.
Dissolution
- B.
Filtration
- C.
Evaporation
- D.
Distillation
- 8.During distillation, what are the little particles in the water?
- A.
Solid
- B.
Boiling chips
- C.
Glass
- D.
Stone
- 9.What are the two methods of paper chromatography?
- A.
ascending and unscending
- B.
Descending and insecending
- C.
Ascending and descending method
- D.
Done above
- 10.And which one will show the result first?
- A.
Ascending
- B.
Descending
- C.
Unscending
- D.
Inscending
- 11.Why is the colored spot not placed below the solvent level during chromatography?
- A.
Waste time
- B.
No effect
- C.
For fun
- D.
Dye will dissolve
- 12..If you want to use separating funnel to separate oil and water, what is the substance remain in the funnel after the experiment?
- A.
oil
- B.
Water
- C.
Oil and water
- D.
Nothing
- 13.Sublimation refers to change of state of a substance from _______ to _______.
- A.
solid-liquid
- B.
Solid-gas
- C.
Liquid-gas
- D.
Gas-solid
- 14.What are the methods used if you want to separate two solids of different solubility in a particular solvent?
- A.
Dissolution
- B.
Filtration
- C.
Evaporation
- D.
Crystallization
- E.
All above
- 15.To obtain a solute by crystallization method, the solubility of the solute must varies a lot with __________.
- A.
Volume
- B.
Speed
- C.
Nothing
- D.
Temperature
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