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 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 cold beverages like soda or juice?

  1. Coffee Maker

  2. Water Dispenser

  3. Soda Fountain

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

Soda fountains are used to dispense carbonated beverages, such as soda, juice, and flavored water.

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

Blood is thicker than water.

  1. Blood is thicker than water.

  2. Water is thicker than blood.

  3. Blood is thinner than water.

  4. Water is thinner than blood.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This proverb means that family ties are stronger than any other kind of relationship.

Multiple choice

Which technique involves the use of heat to transform a liquid into a semi-solid gel?

  1. Sous Vide

  2. Spherification

  3. Cryo-freezing

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

Gelling is the process of using heat to transform a liquid into a semi-solid gel. This technique is often used to create desserts, such as panna cotta and gelatin.

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

Which of the following is a type of distilled spirit?

  1. Vodka

  2. Whiskey

  3. Rum

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

Vodka, Whiskey, and Rum are all types of distilled spirits. Distilled spirits are alcoholic beverages that have been distilled to remove impurities.

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.

Multiple choice

In a marine refrigeration system, the evaporator is responsible for:

  1. Cooling the Refrigerant

  2. Condensing the Refrigerant

  3. Expanding the Refrigerant

  4. Compressing the Refrigerant
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The evaporator in a marine refrigeration system absorbs heat from the surrounding environment, causing the refrigerant to evaporate and cool down.

Multiple choice

In a marine steam condenser, the steam is condensed into water by:

  1. Cooling Water

  2. Air

  3. Refrigerant

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

In a marine steam condenser, cooling water is used to condense the steam into water.

Multiple choice

Which of the following 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 a compound composed of two hydrogen atoms and one oxygen atom, represented by the chemical formula H2O.

Multiple choice

Which of the following is an example of a bifurcation?

  1. The transition from laminar to turbulent flow in a fluid.

  2. The sudden change in the behavior of a pendulum when it is pushed too far.

  3. The abrupt change in the climate of a region due to a small change in temperature.

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

Bifurcations can occur in a wide variety of physical, biological, and social systems. Some common examples include the transition from laminar to turbulent flow in a fluid, the sudden change in the behavior of a pendulum when it is pushed too far, and the abrupt change in the climate of a region due to a small change in temperature.