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Total questions: 18
Worksheet time: 6mins
In which of these changes does matter initially is in the gas state?
Condensation
Melting
Boiling
Sublimation
Given below are some examples of changes. In which of the following examples of changes, a chemical change is observed.
1.Melting an ice cube
2.Baking a cake
3.Souring milk
4.Boiling water
Only 1
Only 2
Both 2 and 3
Only 4
A container is filled with gas. If the pressure is applied or temperature is lowered, the gaseous matter will get converted into its liquid state. What is this process called?
Condensation
Evaporation
Sublimation
Deposition
State whether true or false.
When the matter is changing state due to a change in temperature, the matter will remain at the same temperature until the state of the entire matter has changed.
True :-)
False :-(
Solid can directly be converted into a gas state without even passing through the liquid state.
What is this process called?
Condensation
Sublimation
Deposition
Evaporation
Some phase conversions are listed below. Which of them are NOT correct?
Liquid to solid - Melting
1.Solid to gas - Sublimation
2.Gas to solid - Evaporation
3.Gas to liquid - Condensation
1 and 2
2 and 3
1 and 3
3 and 4
In a chemistry Laboratory, a gas was prepared in one corner. But within 5 minutes, its smell spread across the entire laboratory. Which property of the gas explains this?
Gas molecules do not attract each other
The space between the gas molecules is very large
Gas molecules can randomly move anywhere
All of the above
Gases flow in which direction?
Upwards
Downwards
Sideways
In all directions
Three statements are given below that relate the Compressibility of matter to their state. Which of the following statements is/are true?
1.Gases have the highest Compressibility.
2.Solids and liquids both states have almost equal Compressibility.
3.The particles of solid can not be compressed as they are very closely packed.
1 and 3
1 and 2
2 and 3
1, 2 and 3
A substance was kept in a far bigger container. After some time, it was found that the substance has the same volume but it has spread across the bottom of the container. What is the state of this substance?
Solid
Liquid
Gas
Liquid or solid
A bowl of water is kept under the sunlight. The particles of the matter get converted into water vapours due to sunlight. Which one of the following options explains the correct reason behind the phase conversion?
The particles of the liquid will absorb the energy and will become water vapour.
The particles of the water will release the energy and will become water vapour.
The particles of the liquid will change its phase from liquid to gas due to sublimation.
The particles of the liquids will take up the energy and condense to form water vapour.
Compressibility is a property of matter in which particles of the matter come closer and the state of the matter can be reversed from gas to liquid or liquid to solid. It cannot be compressed after a point. Why is it not possible to compress a solid?
There is almost no space between the particles of matter for compression of matter.
Particles are loosely attached with each other in a solid.
Particles are very big in size in solids.
Particles are rigid in solids.
Neha prepared mango pickles and kept them on the balcony for sun drying. The pickles were kept for sun-drying to remove its water content. Which of the following processes causes the mangoes to shrink?
Evaporation
Boiling
Sublimation
Condensation
In sublimation, matter changes its state from _________ state to __________ state.
liquid, solid
solid, liquid
liquid, gaseous
solid, gaseous
The particle arrangements in all three states are given below. Which of these will have the least compressibility?
A
B
C
A and B will have same compressibility.
Solid materials are generally not compressible. The sponge is a solid matter. Still, it gets easily compressed when we press it.
Which of the following options justifies the compressibility of sponge?
The sponge is easy to compress as it has air gaps between the particles.
The sponge is easy to compress as it is partially liquid in nature.
The sponge is not a true solid material.
The sponge is an exceptional solid material which can be compressed.
Compressibility is a property of matter in which particles come closer and state of matter can be reversed from. Gas to liquid or liquid to solid. It can not be compressed after a point.
Which of the following options is going to decide the limit of compressibility?
Motion of particles
Distance between the particles
Size of particles
Volume of matter
The temperature at which a liquid starts changing into its solid state is called the (a) point.
