Q. What is the term for the transition from liquid to gas?
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A.
Condensation
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B.
Evaporation
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C.
Sublimation
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D.
Freezing
Solution
Evaporation is the process where liquid turns into gas.
Correct Answer: B — Evaporation
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Q. What phenomenon occurs when a liquid rises in a narrow tube against gravity?
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A.
Viscosity
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B.
Surface tension
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C.
Capillarity
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D.
Hydrostatic pressure
Solution
Capillarity is the phenomenon where liquid rises in a narrow tube due to surface tension.
Correct Answer: C — Capillarity
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Q. Which of the following factors does NOT affect the vapor pressure of a liquid?
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A.
Temperature
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B.
Nature of the liquid
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C.
Surface area
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D.
Presence of impurities
Solution
Surface area does not significantly affect the vapor pressure of a liquid.
Correct Answer: C — Surface area
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Q. Which of the following factors does NOT affect the viscosity of a liquid?
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A.
Temperature
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B.
Molecular weight
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C.
Pressure
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D.
Surface area
Solution
Surface area does not significantly affect the viscosity of a liquid.
Correct Answer: D — Surface area
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Q. Which of the following is a characteristic of a crystalline solid compared to a liquid?
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A.
Definite melting point
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B.
Fluidity
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C.
High compressibility
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D.
Random arrangement of particles
Solution
Crystalline solids have a definite melting point due to their ordered structure.
Correct Answer: A — Definite melting point
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Q. Which of the following is a characteristic of a liquid in a closed container?
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A.
It can expand indefinitely
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B.
It has a fixed volume
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C.
It has a fixed shape
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D.
It cannot exert pressure
Solution
A liquid in a closed container has a fixed volume but can exert pressure.
Correct Answer: B — It has a fixed volume
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Q. Which of the following is a characteristic of a liquid in equilibrium?
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A.
Constant density
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B.
Constant temperature
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C.
Constant pressure
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D.
All of the above
Solution
In equilibrium, a liquid maintains constant density, temperature, and pressure.
Correct Answer: D — All of the above
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Q. Which of the following is a characteristic of a supercooled liquid?
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A.
It has a definite shape
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B.
It flows like a solid
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C.
It has a higher viscosity than normal liquids
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D.
It can exist below its freezing point
Solution
Supercooled liquids can exist below their freezing point without solidifying.
Correct Answer: D — It can exist below its freezing point
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Q. Which of the following is a characteristic of amorphous solids?
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A.
Long-range order
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B.
Short-range order
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C.
Definite melting point
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D.
High thermal conductivity
Solution
Amorphous solids have short-range order but lack long-range order.
Correct Answer: B — Short-range order
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Q. Which of the following is a characteristic of non-Newtonian fluids?
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A.
Constant viscosity
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B.
Viscosity changes with shear rate
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C.
Incompressible
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D.
High surface tension
Solution
Non-Newtonian fluids exhibit a change in viscosity with the rate of shear applied.
Correct Answer: B — Viscosity changes with shear rate
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Q. Which of the following liquids has the highest boiling point?
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A.
Ethanol
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B.
Water
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C.
Benzene
-
D.
Hexane
Solution
Water has a higher boiling point due to strong hydrogen bonding.
Correct Answer: B — Water
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Q. Which of the following liquids has the highest surface tension?
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A.
Water
-
B.
Ethanol
-
C.
Benzene
-
D.
Mercury
Solution
Mercury has the highest surface tension due to strong cohesive forces.
Correct Answer: D — Mercury
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Q. Which of the following liquids has the highest viscosity?
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A.
Water
-
B.
Glycerol
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C.
Ethanol
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D.
Acetone
Solution
Glycerol is a thick liquid and has a higher viscosity compared to the others.
Correct Answer: B — Glycerol
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Q. Which of the following liquids has the lowest boiling point?
-
A.
Water
-
B.
Ethanol
-
C.
Benzene
-
D.
Hexane
Solution
Benzene has a lower boiling point compared to water, ethanol, and hexane.
Correct Answer: C — Benzene
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Q. Which of the following liquids is an example of a non-polar liquid?
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A.
Water
-
B.
Ethanol
-
C.
Benzene
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D.
Acetic acid
Solution
Benzene is a non-polar liquid, while the others are polar.
Correct Answer: C — Benzene
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Q. Which of the following liquids is considered a non-polar solvent?
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A.
Water
-
B.
Ethanol
-
C.
Hexane
-
D.
Acetic acid
Solution
Hexane is a non-polar solvent, while the others are polar.
Correct Answer: C — Hexane
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Q. Which of the following liquids is most likely to exhibit strong hydrogen bonding?
-
A.
Hexane
-
B.
Ethanol
-
C.
Chloroform
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D.
Acetone
Solution
Ethanol can form strong hydrogen bonds due to the presence of an -OH group.
Correct Answer: B — Ethanol
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Q. Which of the following liquids would have the lowest surface tension?
-
A.
Water
-
B.
Mercury
-
C.
Ethanol
-
D.
Oil
Solution
Ethanol has a lower surface tension compared to water and mercury due to its molecular structure.
Correct Answer: C — Ethanol
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Q. Which of the following properties is characteristic of liquids?
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A.
Definite shape
-
B.
Definite volume
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C.
Compressibility
-
D.
High viscosity
Solution
Liquids have a definite volume but take the shape of their container.
Correct Answer: B — Definite volume
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Q. Which of the following properties is NOT associated with liquids?
-
A.
Surface tension
-
B.
Viscosity
-
C.
Compressibility
-
D.
Fluidity
Solution
Liquids are generally incompressible, so compressibility is not a property associated with them.
Correct Answer: C — Compressibility
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Q. Which of the following properties is NOT typical of liquids?
-
A.
High density
-
B.
Low compressibility
-
C.
Fixed volume
-
D.
Fixed shape
Solution
Liquids have a fixed volume but do not have a fixed shape; they take the shape of their container.
Correct Answer: D — Fixed shape
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Q. Which of the following properties of liquids is affected by temperature?
-
A.
Density
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B.
Viscosity
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C.
Surface tension
-
D.
All of the above
Solution
All these properties change with temperature; for example, viscosity decreases with increasing temperature.
Correct Answer: D — All of the above
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Q. Which of the following statements about the boiling point of a liquid is correct?
-
A.
It is the temperature at which vapor pressure equals atmospheric pressure
-
B.
It is always higher than the melting point
-
C.
It is independent of atmospheric pressure
-
D.
It decreases with increasing molecular weight
Solution
The boiling point is the temperature at which the vapor pressure of a liquid equals the atmospheric pressure.
Correct Answer: A — It is the temperature at which vapor pressure equals atmospheric pressure
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Q. Which of the following statements about the viscosity of liquids is true?
-
A.
Viscosity increases with temperature
-
B.
Viscosity decreases with temperature
-
C.
Viscosity is independent of temperature
-
D.
Viscosity is the same for all liquids
Solution
Viscosity generally decreases with an increase in temperature.
Correct Answer: B — Viscosity decreases with temperature
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Q. Which of the following statements is true regarding the boiling point of a liquid?
-
A.
It is constant regardless of pressure.
-
B.
It increases with increasing atmospheric pressure.
-
C.
It decreases with increasing atmospheric pressure.
-
D.
It is the same for all liquids.
Solution
The boiling point of a liquid increases with increasing atmospheric pressure.
Correct Answer: B — It increases with increasing atmospheric pressure.
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