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 are the two phases of the NAO?

  1. Positive and negative

  2. Warm and cold

  3. Wet and dry

  4. High and low
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The NAO has two phases: a positive phase and a negative phase.

Multiple choice

What is a suitable beverage option for seniors with fluid restrictions?

  1. Soda and sugary drinks

  2. Coffee and tea with added sugar

  3. Water and unsweetened herbal tea

  4. Fruit juices and sports drinks
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Water and unsweetened herbal tea are hydrating and low in calories, making them suitable for seniors with fluid restrictions.

Multiple choice

The phenomenon where a material undergoes a sudden change in its properties when heated or cooled is known as:

  1. Phase transition

  2. Melting

  3. Evaporation

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

Phase transition is the change in the physical state or structure of a material due to changes in temperature or pressure.

Multiple choice

What is the primary factor determining the wettability of a surface?

  1. Surface tension

  2. Surface roughness

  3. Surface energy

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

The wettability of a surface is primarily determined by the surface energy and its interaction with the liquid, which is quantified by the contact angle.

Multiple choice

What are the main factors that contribute to the deterioration of cuneiform tablets?

  1. Moisture

  2. Heat

  3. Light

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

Moisture, heat, and light can all cause damage to cuneiform tablets, leading to their deterioration.

Multiple choice

Which of the following is NOT a common type of printmaking solvent?

  1. Mineral spirits

  2. Turpentine

  3. Water

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

Water is not a common type of printmaking solvent because it is not as effective at removing ink and grease as other solvents.

Multiple choice

Which process involves the conversion of liquid water into water vapor?

  1. Condensation

  2. Evaporation

  3. Sublimation

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

Evaporation is the process by which liquid water changes into water vapor and enters the atmosphere.

Multiple choice

Which term refers to the process of converting water vapor into liquid water in the atmosphere?

  1. Condensation

  2. Evaporation

  3. Sublimation

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

Condensation is the process of converting water vapor into liquid water in the atmosphere.

Multiple choice

What is the term for the direct conversion of ice or snow into water vapor without passing through the liquid phase?

  1. Condensation

  2. Evaporation

  3. Sublimation

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

Sublimation is the direct conversion of ice or snow into water vapor without passing through the liquid phase.

Multiple choice

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

  1. Evaporation

  2. Condensation

  3. Precipitation

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

Evaporation is the process by which water changes from a liquid to a gas. This process occurs when water molecules absorb energy from their surroundings and move faster, breaking away from the liquid and entering the atmosphere.

Multiple choice

What is the process by which water vapor in the atmosphere changes back into a liquid?

  1. Evaporation

  2. Condensation

  3. Precipitation

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

Condensation is the process by which water vapor in the atmosphere changes back into a liquid. This process occurs when water vapor molecules lose energy and slow down, allowing them to come together and form liquid water droplets.

Multiple choice

According to Anaximander, what is the fundamental element of all matter?

  1. Water

  2. Air

  3. Fire

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

Anaximander believed that the fundamental element of all matter was the Boundless, which he described as an infinite, indeterminate substance from which all things arise and to which all things return.

Multiple choice

Which of the following is NOT a type of phase transition?

  1. Solid-liquid

  2. Liquid-gas

  3. Solid-solid

  4. Gas-plasma
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gas-plasma is not a phase transition, but rather a change in the state of matter.

Multiple choice

At the critical point of a substance, which of the following is NOT true?

  1. The liquid and gas phases become indistinguishable.

  2. The density of the liquid and gas phases becomes equal.

  3. The pressure and temperature are at their maximum values.

  4. The specific heat capacity of the substance becomes infinite.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

At the critical point, the pressure and temperature are at their minimum values, not their maximum values.

Multiple choice

Which of the following is NOT a property that exhibits a discontinuity at a phase transition?

  1. Volume

  2. Enthalpy

  3. Entropy

  4. Specific heat capacity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Specific heat capacity is a continuous function of temperature, even at phase transitions.