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What is a colloidal solution ?...

What is a colloidal solution ?

A

Smoke

B

Ink

C

Blood

D

Air

Text Solution

Verified by Experts

The correct Answer is:
D
Air is not a colloidal solution.
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A colloidal solution is a type of mixture which consists of particles whose size varies between 1 and 1000 nanometres. In colloidal solution the particles are distributed evenly. During this process the particles do not settle down. This is one of the best know thing about colloidal solutions. Properties of colloids and their variation are a well-known area ever since the primitive age. The best example to prove their familiarity with us is that we know from very early times that coagulation of milk results in the formation of curd. Physical properties of colloids 1. The nature of the colloidal solution is heterogeneous i.e. unlike. These solutions dwell with two different phases : • Dispersed medium Dispersed phase. 2. Despite the fact that colloidal dispersions are unlike in description (nature), yet the dispersed fragments are not detectabJe by the human eye. This is due to the microscopic size of the particles in the solution. 3. The colour of the colloidal dispersion is determined by particles in the solution based on their size. The wavelengths of light that is absorbed will be longer ifthe size of the particle is large. 4. As a result of its size, the colloidal fragments can easily be passed through a traditional filter paper. However, these particles can be filtered by using membranes such as animal, cellophane, and ultrafilters. What type of phases of colloidal solutions ?

Explain electrophoresis. How is it helpful in causing coagulation of colloidal solutions ?

What is meant by coagulation of a colloidal solution ? Describe briefly any three methods by which coagulation of lyophobic sols can be carried out.

What is the difference between true solution and colloidal solution?

ACCURATE PUBLICATION-SURFACE CHEMISTRY -COMPREHENSION QUESTIONS
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  8. Explain the adaptation of plants to live in water?

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  12. What kind of movement do we see in plants?

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  13. Read the given passage and answers following questions : Emulsion: ...

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  14. What are the three characteristics that are shown in all living oragni...

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