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

Which of the following is an example of a fortified beverage?

  1. Orange juice

  2. Milk

  3. Soda

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

Milk is an example of a fortified beverage because it is often fortified with vitamins and minerals, such as calcium and vitamin D.

Multiple choice

Which of the following is an example of a caffeinated beverage?

  1. Coffee

  2. Tea

  3. Soda

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

Coffee is an example of a caffeinated beverage.

Multiple choice

Which of the following is an example of a sweetened beverage?

  1. Soda

  2. Fruit juice

  3. Water

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

Soda is an example of a sweetened beverage.

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.

Multiple choice

What is the name of the state of matter in which a substance has a definite volume but no definite shape?

  1. Solid

  2. Liquid

  3. Gas

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

A liquid is a state of matter in which a substance has a definite volume but no definite shape. The particles in a liquid are held together by weaker intermolecular forces than in a solid.

Multiple choice

What is the name of the state of matter in which a substance has no definite shape or volume?

  1. Solid

  2. Liquid

  3. Gas

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

A gas is a state of matter in which a substance has no definite shape or volume. The particles in a gas are very far apart and have very weak intermolecular forces.

Multiple choice

What is the chemical formula for water?

  1. H2O

  2. CO2

  3. NaCl

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

Water is composed of two hydrogen atoms and one oxygen atom, giving it the chemical formula H2O.

Multiple choice

What is the process by which water vapor in the air condenses into liquid water?

  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 condenses into liquid water. It occurs when the air temperature drops below the dew point, causing the water vapor to condense into tiny water droplets, forming clouds or fog.

Multiple choice

What is the term for the temperature at which a liquid turns into a gas?

  1. Freezing point

  2. Boiling point

  3. Melting point

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

The boiling point is the temperature at which a liquid turns into a gas. It is the temperature at which the vapor pressure of the liquid equals the pressure surrounding the liquid.

Multiple choice

What is the term for the temperature at which a gas turns into a liquid?

  1. Freezing point

  2. Boiling point

  3. Melting point

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

The condensation point is the temperature at which a gas turns into a liquid. It is the temperature at which the vapor pressure of the gas equals the pressure surrounding the gas.

Multiple choice

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

  1. Evaporation

  2. Condensation

  3. Sublimation

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

Sublimation is the process by which a solid turns into a gas without first becoming a liquid. It occurs when the solid's molecules gain enough energy to break free from the intermolecular forces holding them in place.