'A Substance Has a Definite Shape as Well as a Definite Volume'. Which Physical State is Represented by this Statement? - Science

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'A substance has a definite shape as well as a definite volume'. Which physical state is represented by this statement?



A substance has neither a fixed shape nor a fixed volume. State whether it is a solid, a liquid or a gas

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Chapter 1: Matter in Our Surroundings - Very Short Answers [Page 18]


Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 1 Matter in Our Surroundings
Very Short Answers | Q 14 | Page 18

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Give one example of the diffusion of a solid in another solid.

Explain why, the diffusion of a solid in another solid is a very slow process.

State two characteristic properties of a solid.

How do solids, liquids and gases differ in shape and volume?

Give two reasons to justify that An iron almirah is a  solid.

Compare the properties of solids, liquids and gases in tabular form.

Give two reasons for saying that wood is a solid.

Give one difference between atoms and molecules.

What are fluids? Give two examples

Give reasons

When a teaspoon of sugar is added to half a glass of water and stirred, the water level in the glass remains unchanged.

Write whether the following statements are true or false:

Only water can exist in three different states

To identify materials of common use
Procedure – Just move around in your house – in the drawing room, sitting room, bedroom, kitchen, bathroom etc. Identify the things and All in the blanks in the table given below

No. Place Name of the thing Material used for making the thing
1 Study room    
2 Drawing room    
3 Kitchen    
4 bathroom    
5 Any other place    

Describe simple experiments to prove that liquids have mass

Describe simple experiments to prove that liquids have a definite volume

Explain the term ‘Interconversion of matter’. With reference to ice, water, and water vapour show diagrammatically the change of state of matter from solid to liquid to gaseous and back to the original state.

State if the following is a physical property of a substance.

Chlorine gas has a – strong irritating odor.

State if the following is a physical property of a substance.

Magnesium reacts with dilute hydrochloric acid, liberating hydrogen gas.

See the given pictures and write down the state of each object. (Solid, Liquid, Gas)

_____ ______ ______ ______ ______
______ _______ ______ ______ ______

Write the states of water.

Which of the following are the states of matter?

Which of the following is a solid?

______ soil is suitable for growing cotton.

Discuss briefly on three states of matter.

In solids, the space between the particles is less than in ______.

Complete the given analogy.

Solid: Definite shape:: ______: Shape of the vessel.

Match the following.

Srl. no. A B C
i Separation of visible undesirable components Water mixed with chalk powder Magnetic Separation
ii Separation of heavier and lighter components Sand and water Decantation
iii Separation of insoluble impurities Iron impurities Filtration
iv Separation of magnetic components from non-magnetic components Rice and stone Hand-picking
v Separation of solids from liquids Husk and paddy Winnowing

Distinguish the properties of solid, liquid, and gas. Draw a suitable diagram.

Identify the state of matter based on the arrangement of the molecules.

What is the physical state of water at-


Solids are compressible.

Complete the Analogy:

Solids: incompressible:: Gas: ______.

Choose the odd one:

______ has definite shape and volume.

Gases have neither a definite shape nor a definite volume.

Complete the Analogy.

Bucket: Plastic:: Table: ______.

How the matter is grouped on the basis of physical states?

The tendency of particles to spread out in order to occupy the available space is ______.

Give two examples of diffusion.

What is the physical state of water at:


What is the physical state of water at:


A strong current of trivalent gaseous boron passed through a silicon crystal decreases the density of the crystal due to part replacement of silicon by boron and due to interstitial vacancies created by missing Si atoms. In one such experiment, one gram of silicon is taken and the boron atoms are found to be 1000 ppm by weight, when the density of the Si crystal decreases by 12%. The percentage of missing vacancies due to silicon, which are filled up by boron atoms will be ____ g. [Given · Atomic wt. Si= 30, B = 11]

The density of solid Argon is 1.6 ml at - 233°C. If the Argon atom is assumed to be sphere of radius 1.5 × 10-8 cm, then the ______ % of solid Argon is apparently occupied.

[Take : NA = 6 × 1023, Atomic mass of Ar = 40]

The composition of a sample of wustite is Fe0.93O1.0· The iron is present in the form of Fe(III) is ______%.


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