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 evs - i substances, objects and energy the states of substances introduction to matter gaseous state

A state of matter is characterized by _________.

  1. temprature

  2. pressure

  3. phase transition

  4. none of above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A state of matter is also characterized by phase transitions. A phase transition indicates a change in structure and can be recognized by an abrupt change in properties. A distinct state of matter can be defined as any set of states distinguished from any other set of states by a phase transition.

Multiple choice evs - i substances, objects and energy the states of substances introduction to matter gaseous state

Select the correct answer from the choices given below. The three states of matter are classified on the basis of differences of certain _________.

  1. chemical properties

  2. physical properties

  3. physical and chemical properties

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The three states of matter are classified on the basis of differences of certain physical properties such as physical existence; solids are physically hard, they have fixed shape and size. Liquids do not have any fixed shape and size, they changed according to the shape of beakers in which they are placed. Gases do not have a fixed shape or volume.

Multiple choice evs - i substances, objects and energy the states of substances introduction to matter gaseous state

The decreasing order of diffusion is ___________.

  1. Gas > Solid > liquid

  2. Liquid > Gas > Solid

  3. Solid > Liquid > Gas

  4. Gas > Liquid > Solid
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The spaces between the particles of gas are more so they can mix into each other very easily. 

Solid has the least intermolecular space, therefore, it is very difficult to mix with another solid. 
On the other hand, liquids have some diffusion ability.

So, the correct option is $D$

Multiple choice evs - i substances, objects and energy the states of substances introduction to matter gaseous state

Arrange the following substances in increasing order of forces of attraction.

  1. Oxygen, water, sugar

  2. Sugar, water, oxygen

  3. Water, sugar, oxygen

  4. Sugar, oxygen, water
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The forces of attraction are strongest in solids, followed by liquids and the weakest in gases.oxygen is a gas, water is a liquid and sugar is a crystalline solid. 


So the increasing order of forces of attraction is oxygen $<$ water $<$sugar.

So, the correct option is $A$

Multiple choice dew point and humidity heat physics

Formation of dew is an example for ......

  1. Boiling

  2. Melting

  3. Condensation

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

It is a example of condensation.Condensation is the process in which gas changes into a liquid when it touches a cooler surface.


Dew drops are formed due to condensation of water vapors. Air around us contains water vapors which we call moisture or humidity. Hot air contains more moisture as compared to cold air. During the night when the hot air comes into contact with some cold surface, water vapor present in it condenses on the cold surface in the form of droplets. These tiny drops of water are called dew drops

Multiple choice biology meaning of life chemical organization in living beings lipids proteins and their structure

In which of the following solvents lipids are found to be insoluble?

  1. Ether

  2. Water

  3. Chloroform

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

Lipids are compounds of carbon, hydrogen and oxygen where ratio of hydrogen and oxygen is less than that of water. Lipids are esters of fatty acids and alcohol which form emulsion with water but are soluble in organic solvents. Some of the common examples of lipids are butter, ghee, cholesterol, carotene etc.

Multiple choice acyl chlorides carboxylic acids and their derivatives functional derivatives of carboxylic acids carbonyl compounds chemistry

As the molecular weight increases the boiling point of carboxylic acid:

  1. increases

  2. decreases

  3. remain same

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

As the molecular weight increases the boiling point of carboxylic acid increases. Lower aliphatic carboxylic acids (upto 9 C atoms) are liquids, the higher members are wax like solids.