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 name of the substance that is responsible for the cohesion of matter according to the Nyaya-Vaiseshika school?

  1. Ether

  2. Air

  3. Fire

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

Ether is the substance that is responsible for the cohesion of matter according to the Nyaya-Vaiseshika school.

Multiple choice

Which of the following is an example of a solid-state phase transformation?

  1. Melting

  2. Solidification

  3. Annealing

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

Annealing is a solid-state phase transformation that involves heating a metal to a specific temperature and then slowly cooling it to relieve internal stresses and improve its ductility.

Multiple choice

How does the presence of ice on a dust grain surface affect the surface chemistry?

  1. It can provide a medium for reactions to occur.

  2. It can inhibit the mobility of molecules on the surface.

  3. It can alter the composition of the surface.

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

The presence of ice on a dust grain surface can provide a medium for reactions to occur, inhibit the mobility of molecules on the surface, and alter the composition of the surface.

Multiple choice

How is maple syrup made?

  1. Boiling

  2. Freezing

  3. Distillation

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

Maple syrup is produced by boiling maple sap to remove water and concentrate the sugars.

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

Which of the following is NOT a method for storing hydrogen?

  1. Compressed Hydrogen

  2. Liquid Hydrogen

  3. Metal Hydrides

  4. Pumped Hydro Storage
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pumped Hydro Storage is a method for storing energy by pumping water uphill and releasing it downhill through a turbine to generate electricity. It is not a method for storing hydrogen.

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.