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What causes brownian motion in colloidal...

What causes brownian motion in colloidal dispersion ?

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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 detectable 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 are colloidal solution particle.

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 ?

What are colloids ?

What is the difference between true solution and colloidal solution?

Zigzag Random motion of colloidal particles is known as

MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. What causes brownian motion in colloidal dispersion ?

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  2. True or False : Physical adsorption increases with rise in temperature...

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  3. True or False : Chemisorption is irreversible while physisorption is r...

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  4. True or False : Selectivity is the ability of a catalyst to direct the...

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  5. True or False : At low pressure, the extent of adsorption is directly ...

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  6. True or False : Al(NO3)3 has higher coagulating power than MgSO4 for F...

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  7. True or False : Gel is a system in which liquid is the dispersed phase...

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  8. the protective power of the lyophilic colloids es expressed in terms o...

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  9. True or False : Greater the flocculation value of an electrolyte, grea...

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  10. True or False : Adsorption is always multimolecular.

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  11. True or False : Colloidal sols are always heterogeneous.

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  12. Complete the missing links : Milk is an example of............. in ......

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  13. The phenomenon in which adsorption and absorption takes place simultan...

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  14. The nature of forces involved in physical adsorption are ................

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  15. The formation of micelles takes place above a particular temperature c...

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  16. The movement of colloidal particles under the influence of an electric...

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  17. The scattering of light by colloidal particles is called ........... .

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  18. The swelling of gel in water is called ............. .

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  19. ............. is the process of Separating the crystalloids from collo...

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  20. Colloidal solution of gold in water is called ............... .

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  21. In whipped cream, the dispersion medium is................ and dispers...

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