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Solutions Suspensions and Colloids --- Quiz (Level 1)

 

1. In a solution the substance that is being dissolved is called the___
a) Solvent
b) Emulsifier
c) Solute
d) Filtrate

2. An emulsion is always between___
a) Two solids
b) A solid and liquid
c) Two gases
d) Two liquids

3. What is one property of a suspension that is different from that of a solution or a colloid?
a) If left to rest, the particles of a suspension will settle out.
b) The particles of a suspension reflect light.
c) A suspension is always clear
d) Suspensions are colorless

4. A What is the size of particles in a solution?
a) More than 10,000 Angstroms
b) Between 10,000 and 100,000 Angstroms
c) Between 10 and 10,000 Angstroms
d) Molecule size

5. A solution that cannot hold any more solute at room temperature is ___
a) A weak solution
b) A concentrated solution
c) A saturated solution
d) A supersaturated solution

6. An example of a colloid which is an emulsion is ___
a) Wipped cream
b) Mayonnaise
c) Fog
d) Gelatin

7. An example of a solution is ___
a) Sugar and water
b) Sand and water
c) Milk
d) Whipped Cream

8. Oil floats on water. The most accurate reason for this is
a) oil is less dense than water
b) oil is immiscible (does not dissolve) in water
c) oil is both less dense and immiscible with water
d) water is heavier than oil

9. The best method to separate the solute from the solvent in a solution would be ___
a) Distillation
b) Filtration
c) Sedimentation
d) all of the above will work

10. What makes water such a good solvent?
a) Water is a good solvent because it is a negatively charged ion.
b) Water is such a good solvent because it repels most molecules
b) Water is such a good solvent because it is such a small molecule
d) Water is a good solvent due to its polarity and small molecular size

 

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