Differentiate the General Properties of Solids, Liquids and Gases in the Form of a Table — with Reference to Free Diffusion. - Chemistry


Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to free diffusion.



Solids They have no diffusibility
Liquid They have slight diffusibility
Gases They have high proper diffusibility
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Chapter 1: Matter and Its Composition - Exercise


Viraf J. Dalal Class 7 New Simplified Middle School Chemistry
Chapter 1 Matter and Its Composition
Exercise | Q 6.8


Which of the following are matter?

Chair, air, love, smell, hate, almonds, thought, cold, cold drink, smell of perfume.

Give reasons for the following observation:

The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close.

A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?

What are the characteristics of particles of matter?

Fill in the blank: 

The process in which a solid directly changes into a gas is called ....................

What do you observe when a gas jar which appears empty is inverted over a gas jar containing Bromine vapours? Name the phenomenon.

Define interconversion of states of matter.

State the general properties of a solid.

Give reason:
A red ink drop added to small amount of water in a glass turns water red in some time.

Fill in the blank:

..............can flow

Write whether the following statement is true or false.

 There is no difference between evaporation and boiling.

 The process by which a solid changes into a liquid is called

  1. freezing
  2. melting
  3. condensation
  4. evaporation

A solid is a state of matter that has

  1. no definite shape.
  2. large intermolecuiar space.
  3. high intermolecuiar force of attraction.
  4. no definite volume.


  1. cannot be compressed easily,
  2. occupy the entire space of the container.
  3. have definite shapes.
  4. cannot flow.

If an object is taken to the moon from the earth what will be its mass ?

Write your observation and conclusion for the following

When one of the balloons suspended to the metre scale is punctured while other remains inflated ?

Give reason

When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.

Give an experiment to explain that there are intermolecular spaces between water molecules.

Fill in the blank

When a gas is cooled, its molecules ________ energy,

Write whether the following statement are true or false.

The intermolecular force of attraction is the weakest in gases.

A solid is a state of matter that has

Which single term is used to describe the mixing of copper sulphate and water kept in a beaker, on its own?

Even two or three crystals of potassium permanganate can impart colour to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation?

Which one of the following statement is correct in respect of fluids?

Which of the following statement is incorrect?

Bromine particles are almost twice as heavy as chlorine particles. Which gas will diffuse faster; bromine (vapour) or chlorine? Explain your answer.

When a beam of sunlight enters a room through a window, we can see tiny particles X suspended in a gas (or rather a mixture of gases) Y which are moving rapidly in a very haphazard manner.

  1. What could particles X be ?
  2. Name the gas (or mixture of gases) Y.
  3. What is the phenomenon exhibited by particles X known as ?
  4. What is causing the movement of particles X ?
  5. What conclusion does the existence of this phenomenon give us about the nature of matter ?

Define: diffusion

 Define: interconversion of states of matter.

What are the two conditions for the interconversion of states of matter?

Give reasons for the following:

Solids have a definite shape and are highly rigid while gases have to definite shape and are least rigid.

Give reasons for the following:

Sugar can be distinguished from talcum powder using water.

Give reasons for the following:

Water on freezing turns into ice.

Give reasons for the following:

A bottle of perfume on opening evolves an odour which can be sensed over a long distance.

Complete the statement given below by selecting the correct word.

The space between atoms in gases is maximum while in ____ is minimum,

Fill in the blank with the correct word Given below.

The space between atoms’ [molecules] of solids is ____

Define the Solid and give two examples.

Define the Liquid and give two examples.

Give a reason for the following:

Liquids have one free upper surface only.

200 ml of water is poured into a bowl of 400 ml capacity. The volume of water will be ______.

Among the following ______ is not a mixture.

Water obtained from tube wells is usually ______ water.

Air is not compressible.

Match the following.

Property Example
Breaks easily (Brittle) Metal pan
Bends readily Rubber band
Can be stretched easily Cotton wool
Gets compressed easily Mud pot
Gets heated readily Plastic wire

Mr. Raghu returns home on a hot summer day and wants to have buttermilk. Mrs. Raghu has the only curd. What can she do to get buttermilk? Explain

In a glass containing some water, tamarind juice and sugar are added and stirred well. Is this a mixture? Can you tell why? Will this solution be sweet or sour or both sweet and sour?

Which one of the following element name is not derived from planet?

The Cow and Birds are nonliving things.

Mention any two characteristics of the particles of matter.


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