Chemistry ยท Science General

States of Matter

2,682 Questions

States of matter questions explore physical changes, evaporation, phase transitions, and the properties of liquids and gases. Topics cover density, cryosurgery, heavy water, and electrolytes. This foundational chemistry topic frequently appears in general science sections of SSC and railway exams.

Phase change mechanismsEvaporation and temperature effectsProperties of liquidsPhysical versus chemical changesElectrolytes and heavy water

States of Matter Questions

Multiple choice

What is the term for the process by which a gas turns into a solid without first becoming a liquid?

  1. Evaporation

  2. Condensation

  3. Sublimation

  4. Deposition
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Deposition is the process by which a gas turns into a solid without first becoming a liquid. It occurs when the gas molecules lose enough energy to condense into a solid state.

Multiple choice

What is the term for the process by which water vapor in the air changes directly into ice crystals?

  1. Evaporation

  2. Condensation

  3. Sublimation

  4. Deposition
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Deposition is the process by which water vapor in the air changes directly into ice crystals without first becoming a liquid. It occurs when the water vapor molecules lose enough energy to condense directly into a solid state.

Multiple choice

What is the term for the process by which ice crystals in the air melt and turn into liquid water?

  1. Evaporation

  2. Condensation

  3. Sublimation

  4. Melting
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Melting is the process by which ice crystals in the air melt and turn into liquid water. It occurs when the ice crystals absorb enough energy to break the intermolecular bonds holding them in a solid state.

Multiple choice

What is the term for the process by which liquid water in the air freezes and turns into ice crystals?

  1. Evaporation

  2. Condensation

  3. Sublimation

  4. Freezing
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Freezing is the process by which liquid water in the air freezes and turns into ice crystals. It occurs when the liquid water molecules lose enough energy to form intermolecular bonds and transition into a solid state.

Multiple choice

What is the term for the process by which water vapor in the air changes directly into liquid water without first becoming a solid?

  1. Evaporation

  2. Condensation

  3. Sublimation

  4. Deposition
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Condensation is the process by which water vapor in the air changes directly into liquid water without first becoming a solid. It occurs when the water vapor molecules lose enough energy to condense into a liquid state.

Multiple choice

What is the term for the process by which liquid water in the air evaporates and turns into water vapor?

  1. Evaporation

  2. Condensation

  3. Sublimation

  4. Deposition
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Evaporation is the process by which liquid water in the air evaporates and turns into water vapor. It occurs when the liquid water molecules gain enough energy to break free from the intermolecular forces holding them in a liquid state.

Multiple choice

Which of the following is a type of wave that occurs at the interface between two fluids, such as water and air?

  1. Transverse wave

  2. Longitudinal wave

  3. Surface wave

  4. Internal wave
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Internal waves are waves that occur at the interface between two fluids, such as water and air.

Multiple choice

What is the name of the phase transition that occurs when a material changes from a liquid to a solid?

  1. Melting

  2. Freezing

  3. Sublimation

  4. Deposition
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Freezing is the phase transition that occurs when a material changes from a liquid to a solid. During freezing, the molecules of the liquid lose energy and slow down, causing them to arrange themselves in a more ordered, crystalline structure.

Multiple choice

Which of the following is NOT a type of sports drink?

  1. Isotonic

  2. Hypotonic

  3. Hypertonic

  4. Electrolyte-free
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Isotonic, hypotonic, and hypertonic are all types of sports drinks that contain different concentrations of carbohydrates and electrolytes. Electrolyte-free sports drinks do not contain any electrolytes.

Multiple choice

Which of the following is an example of a thermodynamically unstable system?

  1. A mixture of hydrogen and oxygen gases at room temperature

  2. A diamond at room temperature

  3. A glass of water at room temperature

  4. A cup of hot coffee at room temperature
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A cup of hot coffee is a thermodynamically unstable system because it has a high free energy and is prone to change, such as cooling down to room temperature.

Multiple choice

What is the process by which water vapor in the atmosphere condenses into liquid water droplets or ice crystals called?

  1. Evaporation

  2. Condensation

  3. Precipitation

  4. Sublimation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Condensation is the process by which water vapor in the atmosphere changes from a gas to a liquid or solid.

Multiple choice

What is the term used to describe the process by which water vapor in the air changes from a gas to a liquid or solid?

  1. Evaporation

  2. Condensation

  3. Precipitation

  4. Sublimation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Condensation is the process by which water vapor in the air changes from a gas to a liquid or solid.

Multiple choice

What is the term used to describe the process by which water changes from a liquid to a gas?

  1. Evaporation

  2. Condensation

  3. Precipitation

  4. Sublimation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Evaporation is the process by which water changes from a liquid to a gas.

Multiple choice

What is the term used to describe the change of a substance from a solid to a liquid?

  1. Melting

  2. Freezing

  3. Evaporation

  4. Condensation

  5. Sublimation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Melting is the process by which a solid substance changes to a liquid state.

Multiple choice

What is the term used to describe the change of a substance from a liquid to a gas?

  1. Evaporation

  2. Condensation

  3. Freezing

  4. Melting

  5. Sublimation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Evaporation is the process by which a liquid substance changes to a gaseous state.