Chemistry · 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

This state of matter has no definite shape or volume.

  1. Solid

  2. Gas

  3. Liquid

  4. What is definite?
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Gases have particles that are far apart and move freely in all directions, allowing them to expand to fill any container, meaning they have neither a definite shape nor a definite volume.

Multiple choice

Condensation is

  1. when water turns into a gas without boiling

  2. when a solid warms up and becomes a liquid

  3. when a gas cools and becomes a liquid

  4. when a gas cools directly into a solid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Condensation is the phase change where a gas loses energy, cools down, and transitions into a liquid state.

Multiple choice

Sublimation changes _______ into ________.

  1. Gas into Liquid

  2. Gas into Solid

  3. Solid into Gas

  4. Solid into Liquid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sublimation is the process where a solid changes directly into a gas, bypassing the liquid phase.

Multiple choice

What are the three states of matter

  1. Solid, Liquid, Magma

  2. Ice, Water, Steam

  3. Solid, Liquid, Gas

  4. Solid, Slime, Magma
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The three fundamental states of matter commonly taught in introductory science are solid, liquid, and gas.

Multiple choice

Water is a solid at room temperature

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Water exists as a liquid at standard room temperature. It only becomes a solid (ice) at temperatures at or below 0 degrees Celsius.

Multiple choice some important compounds of magnesium and calcium the s-block elements chemistry

What are the water molecules attached to Epsom salt called?

  1. Water of evaporation

  2. Water of condensation

  3. Water of hydration

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The seven molecules of water attached to $MgSO _4.7H _2O$ are known as water of hydration. By definition, it is the amount of water attached to a compound to form a hydrate. Epsom salt is also known as Magnesium sulphate heptahydrate.

Multiple choice some important compounds of magnesium and calcium the s-block elements chemistry

Which of the following statement is correct?

  1. Magnesium oxide is highly soluble in water

  2. Magnesium oxide is slightly solution in water

  3. Magnesium oxide is insoluble in water

  4. All alkaline earth metal oxides are insoluble in water
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Option $(B)$ is correct.

Magnesium oxide is slightly soluble in water.It is due to an intramolecular force of the magnesium oxide compound. In fact, magnesium oxide is very small, and the attraction forces are very strong to be broke apart when reacted with water.

Multiple choice chemistry matter in our surroundings diffusion in different states of matter properties of solids, liquid, and gas particle theory of matter

A distinctive property of the liquid state is____________.

  1. compressibility

  2. rigidity

  3. condensation

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

A distinctive property of the liquid state is surface tension, leading to wetting phenomena. Surface tension is the elastic tendency of a fluid surface which makes it acquire the least surface area possible. At liquid-air interfaces, surface tension results from the greater attraction of liquid molecules to each other (due to cohesion) than to the molecules in the air (due to adhesion).