Fill in the Following Blank with Suitable Words : the State of Matter Called ........................ Makes a Fluorescent Tube (Or Neon Sign Bulb) to Glow. - Science

Advertisements
Advertisements
Fill in the Blanks

Fill in the following blank with suitable words :

The state of matter  called ........................ makes a fluorescent tube (or neon sign bulb) to glow.

Advertisements

Solution

The state of matter called plasma makes a fluorescent tube (or neon sign bulb) to glow.

  Is there an error in this question or solution?
Chapter 1: Matter in Our Surroundings - Very Short Answers [Page 36]

APPEARS IN

Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 1 Matter in Our Surroundings
Very Short Answers | Q 23.5 | Page 36

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Convert the following temperature to Celsius scale:-573 K


For any substance, why does the temperature remain constant during the change of state?


What is the physical state of water at 25°C.


What do you mean by the change of state? Write the flow chart showing the complete cycle of change of state.


What do you observe when :

water is boiled


What do you observe when :

ime is dissolved in water.


State whether the following is physical or chemical changes.

heating of water —


Tick (√) the correct alternative from the choice given for the following statement.

When we add water to the following substances, which one will show a chemical change?


Tick the most appropriate answer.

Melting of ice is a


Dissolving salt in water is a reversible change.


Ripening of fruits is a desirable change.


How do you say that the process of digestion is a chemical change ?


Convert the temperature of 573 K to the Celsius scale.


What is the name of the process due to which dry ice changes into carbon dioxide gas ?


Fill in the following blank with suitable words :

Scientists say that there are actually five states of matter : solid, liquid, gas,  .................... and ...................


Explain why, there is no rise in temperature of a substance when it undergoes a change of state though heat is supplied continuously.


How does perspiration or sweating help keep our body cool on a hot day ?


Define the term 'latent heat of fusion' of a solid. How much is the latent heat of fusion of ice ?


If the temperature of an object is 268 K, it will be equivalent to :


Differentiate between: Solidification and condensation


Give reasons:

Why a solid does not flow, but a liquid flows?


Write whether the following statement is true or false:

A gas has no free surface.


Give two examples of the following:

Substances which do not change their states.


Give two examples of the following:

Substances which are rigid and not compressible


A kind of matter which can sublime is


A substance which can change its state


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


Explain the term vaporization


State which of the following statement is true or false. If false write the correct statement.

Solids are highly compressible and rigid.


Discuss.

Riya pours some water from her bottle into another bottle. Does it change the shape of the water?


Write the properties of this substance.

Water


What is it made from? Why?

A sickle to cut sugarcane.


What will happen if....? And why?

Rubber is not fitted on a pair of tongs.


What will happen if....? And why?

A knife is made of wood.


What will happen if....? And why?

An axe is made of rubber.


Who am I?

I dissolve in water, but not in kerosene.


Why does this happen?

Coconut oil thickens in winter.


Why does this happen?

Kerosene left open in a dish disappears.


Why does this happen?

What you see in the picture.


Photosynthesis is a natural process by which green plants manufacture food in the presence of sunlight.

Are any new products formed during the above process.


Photosynthesis is a natural process by which green plants manufacture food in the presence of sunlight.

Can the change be reversed or is it irreversible?


State whether the following statement is true or false. If false write the correct statement.

Desirable changes are meaningful, while undesirable changes are unfavourable.


State whether the following statement is true or false. If false write the correct statement.

During physical changes, the composition of the original substance is not altered, but the properties of the original substance are altered.


State whether the following statement is true or false. If false write the correct statement.

During a chemical change the composition of the original substance is not altered and the change is irreversible.


Fill in the blank with the correct word of the statement given below:

Sublimation is _______ a change of state of matter.


Fill in the blanks with the correct words of the statement given below:

During sublimation, a solid on heating turns directly into _________ and on cooling back to __________.


Matter in any state is composed of small particles – molecules, atoms, or ions. Differentiate the terms above in Italics.


State which of the three states of matter Le. solids, liquids or gases – have

(a) No definite volume
(b) A definite shape
(c) High density
(d) No free surfaces
(e) Particles – which diffuse very easily.


Draw a labelled schematic diagram representing the terms (a) to (e) involved in the inter-conversion of matter.


Select the correct answer from A, B, C, D & E for the statement given below:

The state of matter which has ___________ least density & no free surfaces.


With reference to the liquid state of matter – answer the following

The heat energy supplied to the liquid is absorbed by its molecule & stored as which form of energy.


With reference to the liquid state of matter – answer the following

At what point will the particles become free and escape as a gas.


Complete the statement by filling the blank with the correct word given below.

Conversion of vapour [or gas] into a liquid is termed ____________.


Give the reason for the following: 

The kinetic energy of molecules of gases is very large & of solids, the least.


Complete the blank with reference to interconversion of matter on the basis of kinetic theory-with the word ‘increase’, ‘decreases’, ‘gain’, ‘lose’, or ‘overcome’ in following case.

During the melting of solids, the inter-particles space __________.


Complete the blank with reference to interconversion of matter on the basis of kinetic theory-with the word ‘increase’, ‘decreases’, ‘gain’, ‘lose’, or ‘overcome’ in the following case.

During vaporization, the liquid particles ____________ energy.


Share
Notifications



      Forgot password?
Use app×