Chemistry ยท Science General

States of Matter

2,382 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 "chemistry" derived from?

  1. Greek

  2. Latin

  3. Sanskrit

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

The term "chemistry" is derived from the Arabic word "al-kimia," which means "the art of transformation." This term was originally used to refer to the study of alchemy, but it later came to refer to the science of matter and its properties.

Multiple choice

What is the main challenge associated with storing hydrogen in liquid form?

  1. High Pressure

  2. Low Temperature

  3. High Cost

  4. All of the Above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Storing hydrogen in liquid form requires high pressure, low temperature, and specialized equipment, making it a challenging and expensive process.

Multiple choice

What is the process by which a liquid changes to a gas called?

  1. Evaporation

  2. Condensation

  3. Freezing

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

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

Multiple choice

Which of the following is a property of a liquid?

  1. Definite shape

  2. Definite volume

  3. Indefinite shape

  4. Indefinite volume
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

A liquid has a definite volume but no definite shape.

Multiple choice

What is the process by which a gas changes to a liquid called?

  1. Evaporation

  2. Condensation

  3. Freezing

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

Condensation is the process by which a gas changes to a liquid.

Multiple choice

What is the name of the force that holds particles together in a liquid?

  1. Covalent bond

  2. Ionic bond

  3. Metallic bond

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

In a liquid, particles are held together by hydrogen bonds.

Multiple choice

What is the process by which a solid changes to a liquid called?

  1. Evaporation

  2. Condensation

  3. Freezing

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

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

Multiple choice

What is the phenomenon known as cavitation in a pumping system?

  1. The formation of vapor bubbles in the pump due to low pressure

  2. The accumulation of solids in the pump

  3. The overheating of the pump due to excessive friction

  4. The loss of prime in the pump
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cavitation occurs when the pressure in a pump drops below the vapor pressure of the fluid, causing the fluid to vaporize and form vapor bubbles.

Multiple choice

What is the term for the amount of heat required to change a substance from a solid to a liquid?

  1. Specific Heat Capacity

  2. Latent Heat

  3. Heat of Fusion

  4. Heat of Vaporization
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Heat of Fusion refers to the amount of heat required to change a substance from a solid to a liquid.

Multiple choice

What is the term for the amount of heat required to change a substance from a liquid to a gas?

  1. Specific Heat Capacity

  2. Latent Heat

  3. Heat of Fusion

  4. Heat of Vaporization
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Heat of Vaporization refers to the amount of heat required to change a substance from a liquid to a gas.

Multiple choice

Which of the following is a physical property of matter?

  1. Flammability

  2. Density

  3. Reactivity

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

Density is a physical property that describes the mass of a substance per unit volume. It is an intensive property, meaning that it does not depend on the amount of matter present.

Multiple choice

Which of the following is a chemical property of matter?

  1. Melting point

  2. Boiling point

  3. Flammability

  4. Solubility
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Flammability is a chemical property that describes the ability of a substance to burn. It depends on the chemical composition of the substance.

Multiple choice

Which of the following is an example of a physical change?

  1. Rusting of iron

  2. Melting of ice

  3. Burning of wood

  4. Digestion of food
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Melting of ice is a physical change because it involves the rearrangement of water molecules from a solid to a liquid state. No new substances are produced.

Multiple choice

Which of the following is an example of a chemical change?

  1. Dissolving salt in water

  2. Boiling water

  3. Fermentation of grapes

  4. Condensation of water vapor
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fermentation of grapes is a chemical change because it involves the conversion of grape juice into ethanol and carbon dioxide. New substances are produced.

Multiple choice

What is the name of the state of matter in which a substance has a definite shape and volume?

  1. Solid

  2. Liquid

  3. Gas

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

A solid is a state of matter in which a substance has a definite shape and volume. The particles in a solid are held together by strong intermolecular forces.