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 dispersed phase in a colloid?

  1. Solid

  2. Liquid

  3. Gas

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

A colloid is a mixture of two or more substances, one of which is dispersed in the other in the form of small particles.

Multiple choice

What is the continuous phase in a colloid?

  1. Solid

  2. Liquid

  3. Gas

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

The continuous phase in a colloid is the phase in which the dispersed phase is dispersed.

Multiple choice

What are the different types of colloids?

  1. Sol

  2. Gel

  3. Emulsion

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

The different types of colloids include sols, gels, emulsions, and foams.

Multiple choice

What are the applications of colloids?

  1. Food

  2. Cosmetics

  3. Pharmaceuticals

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

Colloids are used in a wide variety of applications, including food, cosmetics, and pharmaceuticals.

Multiple choice

What is the principle behind the operation of a thermometer?

  1. The expansion and contraction of a liquid or gas

  2. The change in electrical resistance of a metal

  3. The change in color of a substance

  4. The change in weight of a substance
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A thermometer operates based on the expansion and contraction of a liquid or gas.

Multiple choice

Which of the following is a property of fluids?

  1. Viscosity

  2. Density

  3. Surface tension

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

Viscosity, density, and surface tension are all properties of fluids. Viscosity is the resistance of a fluid to flow, density is the mass per unit volume of a fluid, and surface tension is the tendency of a fluid to minimize its surface area.

Multiple choice

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

  1. Evaporation

  2. Condensation

  3. Precipitation

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

Condensation is the process by which water vapor in the atmosphere cools and changes into a liquid or solid state.

Multiple choice

Which of the following is an example of a particle effect?

  1. Fire

  2. Water

  3. Smoke

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

Fire, water, and smoke are all examples of particle effects that are commonly used in video games.

Multiple choice

Which of the following is NOT a type of substance recognized by the Nyaya-Vaiseshika school?

  1. Earth

  2. Water

  3. Fire

  4. Air

  5. Ether
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Ether is not considered a separate substance in the Nyaya-Vaiseshika system, but rather a quality of space.

Multiple choice

Which of the following is an example of a heterogeneous reaction?

  1. A reaction between two gases

  2. A reaction between a gas and a solid

  3. A reaction between two liquids

  4. A reaction between a solid and a liquid
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A heterogeneous reaction is a reaction in which the reactants and products are in different phases, such as a reaction between a gas and a solid.

Multiple choice

What is the chemical formula for water?

  1. H2O

  2. H2O2

  3. H3O

  4. H4O
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Water is a compound composed of hydrogen and oxygen atoms. The chemical formula for water is H2O, which indicates that there are two hydrogen atoms and one oxygen atom in each molecule.

Multiple choice

The chemical formula for water is:

  1. H2O

  2. CO2

  3. NaCl

  4. CH4
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The chemical formula for water is H2O, indicating that a water molecule consists of two hydrogen atoms and one oxygen atom.

Multiple choice

What type of dispenser is commonly used for serving hot beverages like coffee or tea?

  1. Coffee Maker

  2. Water Dispenser

  3. Soda Fountain

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

Coffee makers are used to brew and dispense hot coffee.

Multiple choice

What is the main ingredient in carbonated soft drinks?

  1. Water

  2. Sugar

  3. Carbon dioxide

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

Water is the main ingredient in carbonated soft drinks, typically accounting for over 90% of their volume.

Multiple choice

What is the term for the process of converting a liquid into a solid by cooling it?

  1. Solidification

  2. Crystallization

  3. Deposition

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

Solidification is the process of converting a liquid into a solid by cooling it.