Class 9 Chemistry · Chapter 1 · Test 4
Solubility and Its Factors
25 MCQs • Practice saturated and unsaturated solutions, solubility, and the effects of temperature on the solubility of solids and gases.
25 questions · 25 min · 25 marks
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Sample questions
The first 5 of 25. Try each one, then tap to see the answer.
Question 1
What does solubility describe?
- AThe rate of evaporation
- BThe maximum amount of solute that dissolves in a given amount of solvent at a specified temperature
- CThe mass of the solvent only
- DThe boiling point of a solution
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Answer: B
Solubility is the maximum amount of solute that dissolves under specified conditions.
Question 2
A solution that contains the maximum amount of dissolved solute at a given temperature is called:
- ADilute
- BUnsaturated
- CSaturated
- DColloidal
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Answer: C
A saturated solution contains as much dissolved solute as it can hold at that temperature.
Question 3
An unsaturated solution can:
- ADissolve more solute at the same temperature
- BContain no solvent
- CAlways contain undissolved solute
- DNever change concentration
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Answer: A
An unsaturated solution has the capacity to dissolve additional solute at the same temperature.
Question 4
Which factor is especially important when stating the solubility of a solid in a liquid?
- AColour of the solvent
- BTemperature
- CShape of the container
- DAtmospheric noise
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Answer: B
The solubility of many solids changes with temperature.
Question 5
The solubility of most solid solutes in water generally:
- ADecreases as temperature rises
- BIncreases as temperature rises
- CRemains exactly constant
- DBecomes zero
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Answer: B
For many solids, higher temperature increases solubility.
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