IPC 9B: Properties of Solutions (Ch. 23)
Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Adding more
solute to a solvent ____. a. | does not affect its boiling point | c. | decreases its boiling point | b. | increases its boiling
point | d. | increases its freezing
point | | | | |
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2.
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Increasing
the surface area of a solid ____. a. | causes the solid to ionize | c. | has no effect on the rate of solution | b. | slows the rate of
solution | d. | speeds the rate of
solution | | | | |
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3.
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An alloy is
an example of a ____ solution. a. | solid | c. | dilute | b. | gaseous | d. | liquid | | | | |
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4.
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The process
by which the positive and negative ions of a crystalline solid separate in water is called
____. a. | dissociation | c. | ionization | b. | solution | d. | saturation | | | | |
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5.
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Which of the
following combinations would increase the solubility of a gas in a liquid? a. | Decrease the pressure
and increase the temperature. | b. | Decrease the pressure and decrease the
temperature. | c. | Increase the pressure and decrease the
temperature. | d. | Increase the pressure and increase the
temperature. | | |
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6.
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A molecule
that is positively charged on one end and negatively charged on the other end is
____. a. | a
hydrocarbon | c. | radioactive | b. | polar | d. | nonpolar | | | | |
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7.
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A substance
that does NOT conduct an electric current when it forms a solution is a(n) ____. a. | solid | c. | electrolyte | b. | nonelectrolyte | d. | liquid | | | | |
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8.
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A solution
that contains all of the solute it can hold at a given temperature is ____. a. | saturated | c. | unsaturated | b. | diluted | d. | supersaturated | | | | |
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9.
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The oceans
are an example of a(n) ____ solution. a. | liquid | c. | alloy | b. | gaseous | d. | solid | | | | |
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10.
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In a
solution, the substance that is being dissolved is the ____. a. | liquid | c. | solute | b. | gas | d. | solvent | | | | |
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11.
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The amount
of solute that can be dissolved in a specific amount of solvent at a given temperature is its
____. a. | dilution | c. | density | b. | solubility | d. | concentration | | | | |
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12.
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Which of the
following will speed up the dissolving of a solid solute in water? a. | Stir the
solution. | c. | Grind up the
solvent. | b. | Cool the solution. | d. | Freeze the solute. | | | | |
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13.
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When a gas
is dissolved in a liquid, the gas dissolves faster if the liquid is ____. a. | cooled | c. | an
electrolyte | b. | heated | d. | under low pressure | | | | |
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14.
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The
concentration of solution that contains a large amount of solute in the solvent could be described as
____. a. | polar | c. | diluted | b. | unsaturated | d. | concentrated | | | | |
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