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