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

Feels slippery?

  1. acid

  2. base

  3. salt

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

A slippery feel is a characteristic physical property of bases.

Multiple choice

Solid, liquids, and gas are all examples of

  1. physical change

  2. Unknown objects

  3. solutions

  4. states of matter
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solid, liquid, and gas are the three primary states of matter. These states are determined by the arrangement and energy of the particles.

Multiple choice

Water is a good example of a

  1. plasma

  2. solvent

  3. magnet

  4. change of state
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Water is often called the universal solvent because it dissolves more substances than any other liquid. This property is crucial for biological and chemical processes.

Multiple choice

When an object changes from one state to another it is called

  1. dissolving

  2. cohesion

  3. an experiment

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

A physical change occurs when matter changes its form or state (like melting or freezing) without changing its chemical identity. The substance remains the same chemically.

Multiple choice

Water molecules can be compared to

  1. fire because it gets hot

  2. magnets because of how it is attracted to itself

  3. other wet things for fun

  4. other types of plasma because they are liquidy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Water molecules exhibit strong cohesion due to hydrogen bonding, which causes them to be attracted to each other. This is similar to how magnets are attracted to one another.

Multiple choice

Molecules move faster in a liquid than a gas

  1. False

  2. True
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Molecules in a gas move much faster and have more kinetic energy than molecules in a liquid. In a liquid, intermolecular forces keep the molecules closer together, restricting their movement compared to a gas.

Multiple choice

Evaporation is when a solid starts to dissolve

  1. False

  2. True
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Evaporation is the process where a liquid turns into a gas (vapor) at the surface. Dissolving is a different process where a solute mixes into a solvent to form a solution.

Multiple choice

The word dissolve means

  1. when a solid mixes into a liquid

  2. when condensation forms

  3. what happens in "drip drop"

  4. how dense an object is
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dissolving is the process where a solute (usually a solid) is incorporated into a solvent (usually a liquid) to create a homogeneous mixture called a solution.

Multiple choice

Evaporation happens when a

  1. solid turns into plasma

  2. pond freezes in the winter

  3. liquid turns into a vapour (gas)

  4. when gas turns into a liquid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Evaporation is the phase transition of a substance from the liquid state to the gaseous state. It occurs at the surface of the liquid.

Multiple choice

"Drip Drop" is an example of how water

  1. doesn't spill

  2. is attracted to itself

  3. is not affected by gravity

  4. that water is only wet sometimes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Water molecules are polar, meaning they are attracted to one another through hydrogen bonding. This property, known as cohesion, causes water to form droplets rather than spreading out flat.