Which of the following will not be helpful in the process of separating a mixture of chalk and water?

Filtration
Decantation
Sedimentation
Sublimation

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : Sublimation

Concept :

Methods of separation :

Some common methods of separation of materials are handpicking, winnowing, threshing, sieving, sedimentation, decantation, and filtration.

Explanation :

Separation of a mixture of chalk and water:

The mixture is slightly tilted in the glass without disturbing the water.
The water from the top flow into another glass
It is filtered with the help of filter paper.
The mixture is then poured onto the filter paper.
Solid particles in the mixture do not pass through it and remain on the filter.
This process is called filtration.
Then the heavier component (chalk) in a mixture settles after water is added to it, the process is called sedimentation.
Then the water (along with the chalk) is removed, and the process is called decantation.

So, the correct answer is sublimation.

For example, oil and water from their mixture can be separated by this process.
If a mixture of such liquids is allowed to stand for some time, they form two separate layers.
The component that forms the top layer can then be separated by decantation.
Sublimation is the process of changing the solid state directly to a gaseous state.

4 views Answered 2022-09-04 04:29

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