Sample Quizzes For Preparation: Solid, Liquids and Gases
Q1.
Which of the following states of matter has a fixed shape and volume?
A) Solid
B) Liquid
C) Gas
D) Plasma
Q2.
Which state of matter can flow and takes the shape of its container but has a fixed volume?
A) Solid
B) Liquid
C) Gas
D) None
Q3.
Which of the following statements best describes the arrangement of particles in a gas?
A) Tightly packed in a regular pattern
B) Close together in a random arrangement
C) Far apart in a random arrangement
D) Loosely packed in a fixed shape
Q4.
Which process occurs when a solid changes directly into a gas?
A) Melting
B) Condensation
C) Evaporation
D) Sublimation
Q5.
Which process involves particles at the surface of a liquid gaining enough energy to escape into the air?
A) Boiling
B) Evaporation
C) Melting
D) Freezing
Q6.
During which phase change do particles lose kinetic energy and form fixed positions?
A) Boiling
B) Melting
C) Condensation
D) Freezing
Q7.
Which of the following explains why gases can be compressed easily?
A) Particles are already touching
B) Gases have high density
C) Particles are far apart
D) Gases have strong intermolecular forces
Q8.
Which phase change is represented by a flat horizontal section of a heating curve at a substance’s boiling point?
A) Heating of the liquid
B) Condensation
C) Boiling
D) Evaporation
Q9.
What causes the temperature to remain constant during melting or boiling?
A) Particles are moving faster
B) Energy is used to break bonds between particles
C) Particles are forming stronger attractions
D) Temperature drops to reach equilibrium
Q10.
Which of the following is not a correct property of gases?
A) High compressibility
B) High density
C) Random particle motion
D) No fixed volume
Q11.
What happens to the average kinetic energy of particles as temperature increases?
A) It stays the same
B) It decreases
C) It increases
D) It depends on the pressure
Q12.
In a cooling curve, what does the horizontal plateau represent?
A) Increase in temperature
B) Loss of energy without change of state
C) Phase change at constant temperature
D) Heating of the gas
Q13.
Which state of matter has particles vibrating in fixed positions?
A) Solid
B) Liquid
C) Gas
D) Plasma
Q14.
Which change of state occurs when water vapour becomes liquid?
A) Sublimation
B) Condensation
C) Evaporation
D) Melting
Q15.
Why does a gas exert pressure on the walls of its container?
A) Particles stick to the walls
B) Particles continuously lose energy
C) Particles collide with the walls
D) Gravity pulls the particles downward
Q16.
What happens to the volume of a gas if the temperature increases and pressure remains constant?
A) It decreases
B) It remains constant
C) It increases
D) It becomes zero
Q17.
Which state of matter has definite volume but not definite shape?
A) Solid
B) Liquid
C) Gas
D) None of the above
Q18.
What term describes the change from gas to solid without becoming liquid?
A) Condensation
B) Sublimation
C) Deposition
D) Melting
Q19.
Which of the following describes the movement of gas particles?
A) Fixed and vibrating
B) Sliding past each other
C) Random and rapid in all directions
D) Stationary
Q20.
What happens to the pressure of a fixed volume of gas when its temperature increases?
A) It increases
B) It decreases
C) It remains unchanged
D) It becomes zero
Q21.
Which best describes the particle separation in a liquid?
A) Very close together and touching
B) Far apart and evenly spaced
C) Close but random
D) Fixed and rigid
Q22.
Which of the following statements about evaporation is correct?
A) Occurs only at boiling point
B) Occurs throughout the liquid
C) Occurs only from the surface
D) Requires no energy
Q23.
Which factor increases the rate of evaporation?
A) Low temperature
B) Low surface area
C) High humidity
D) High temperature
Q24.
What happens to gas particles when a gas is compressed?
A) They move faster
B) They move slower
C) They come closer together
D) They become fixed in place
Q25.
During boiling, what must happen to the energy absorbed by the substance?
A) It increases particle mass
B) It raises the temperature
C) It breaks intermolecular forces
D) It cools the surroundings
Q26.
Why does temperature stay constant during condensation?
A) Kinetic energy increases
B) Heat energy is released as bonds form
C) Pressure increases
D) Particles expand
Q27.
Which state of matter has the strongest intermolecular forces?
A) Gas
B) Liquid
C) Solid
D) Plasma
Q28.
In terms of kinetic particle theory, why do solids not flow?
A) Particles are too small
B) Particles vibrate in fixed positions
C) Particles move freely
D) Solids have no particles
Q29.
Which of the following happens when a liquid cools to its freezing point?
A) Particle movement increases
B) Bonds are broken
C) Particles become fixed
D) Volume increases
Q30.
What is the effect of increasing pressure on a gas at constant temperature?
A) The gas expands
B) The gas condenses
C) The gas becomes a solid
D) The gas volume decreases
Answers and Explanations
Q1 – A
Solids have a fixed shape and volume. Liquids have fixed volume only. Gases have neither.
Q2 – B
Liquids take the shape of their container but do not change volume.
Q3 – C
Gas particles are far apart and arranged randomly with no fixed position.
Q4 – D
Sublimation is the change from solid directly to gas.
Q5 – B
Evaporation occurs at the surface of a liquid at temperatures below boiling point.
Q6 – D
Freezing causes particles to lose energy and become fixed in position.
Q7 – C
Gas particles are far apart, allowing them to be compressed easily.
Q8 – C
At boiling point, the temperature stays constant while the substance changes state.
Q9 – B
During melting and boiling, energy is used to overcome forces, not raise temperature.
Q10 – B
Gases have low density, not high. Other listed properties are correct.
Q11 – C
Kinetic energy increases as temperature rises — particles move faster.
Q12 – C
Flat sections of cooling curves show phase changes at constant temperature.
Q13 – A
Solids have particles that vibrate in fixed positions due to strong forces.
Q14 – B
Condensation is the process where gas turns into liquid.
Q15 – C
Gas pressure results from collisions between particles and container walls.
Q16 – C
As temperature increases, particles move faster and volume increases (if pressure is constant).
Q17 – B
Liquids have definite volume but no fixed shape.
Q18 – C
Deposition is the direct change from gas to solid.
Q19 – C
Gas particles move randomly and rapidly in all directions.
Q20 – A
Increased temperature increases pressure (particles collide more often and forcefully).
Q21 – C
Liquid particles are close together but randomly arranged.
Q22 – C
Evaporation only occurs at the surface of a liquid.
Q23 – D
Higher temperature increases particle energy and speeds up evaporation.
Q24 – C
Compression brings particles closer, reducing volume.
Q25 – C
During boiling, energy breaks intermolecular forces to allow particles to escape.
Q26 – B
During condensation, energy is released as particles slow and bond to form a liquid.
Q27 – C
Solids have the strongest intermolecular forces holding particles tightly together.
Q28 – B
Solids cannot flow because their particles are fixed in place.
Q29 – C
During freezing, particles lose energy and become locked in fixed positions.
Q30 – D
Increasing pressure forces gas particles closer, reducing volume if temperature is constant.