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Colloidion is a 4% solution of which one...

Colloidion is a 4% solution of which one of the following in alcohol-ether mixture ?

A

nitroglycerine

B

celluloseacetate

C

glycoldinitrate

D

nitrocellulose

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Read the following passage and answer the questions. Ultrafiltration is the process of separating the colloidal particles from the solvent and soluble solutes present in the colloidal solution by specially prepared filters, which are permeable to all substances except the colloidal particles. Colloidal particles can pass through ordinary filter paper because the pores are too large. However, the pores of filter paper can be reduced in size by impregnating with collodion solution to stop the flow of colloidal particles. The usual collodion is a 4% solution of nitrocellulose in a mixture of alcohol and ether. An ultra-filter paper may be prepared by soaking the filter paper in a collodion solution, hardening by formaldehyde and then finally drying it. Thus, by using ultra-filter paper, the colloidal particles are separated from rest of the materials. Ultrafiltration is a slow process. To speed up the process, pressure or suction is applied. The colloidal particles left on the ultra-filter paper are then stirred with fresh dispersion medium (solvent) to get a pure colloidal solution. What is collodion ?

Read the following passage and answer the questions. Ultrafiltration is the process of separating the colloidal particles from the solvent and soluble solutes present in the colloidal solution by specially prepared filters, which are permeable to all substances except the colloidal particles. Colloidal particles can pass through ordinary filter paper because the pores are too large. However, the pores of filter paper can be reduced in size by impregnating with collodion solution to stop the flow of colloidal particles. The usual collodion is a 4% solution of nitrocellulose in a mixture of alcohol and ether. An ultra-filter paper may be prepared by soaking the filter paper in a collodion solution, hardening by formaldehyde and then finally drying it. Thus, by using ultra-filter paper, the colloidal particles are separated from rest of the materials. Ultrafiltration is a slow process. To speed up the process, pressure or suction is applied. The colloidal particles left on the ultra-filter paper are then stirred with fresh dispersion medium (solvent) to get a pure colloidal solution. What is ultrafiltration ?

Read the following passage and answer the questions. Ultrafiltration is the process of separating the colloidal particles from the solvent and soluble solutes present in the colloidal solution by specially prepared filters, which are permeable to all substances except the colloidal particles. Colloidal particles can pass through ordinary filter paper because the pores are too large. However, the pores of filter paper can be reduced in size by impregnating with collodion solution to stop the flow of colloidal particles. The usual collodion is a 4% solution of nitrocellulose in a mixture of alcohol and ether. An ultra-filter paper may be prepared by soaking the filter paper in a collodion solution, hardening by formaldehyde and then finally drying it. Thus, by using ultra-filter paper, the colloidal particles are separated from rest of the materials. Ultrafiltration is a slow process. To speed up the process, pressure or suction is applied. The colloidal particles left on the ultra-filter paper are then stirred with fresh dispersion medium (solvent) to get a pure colloidal solution. How can you convert an ordinary filter paper into an ultrafilter paper ?

MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. Adsorption is accompanied by

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  2. The formation of micelles takes place only above

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  3. Colloidion is a 4% solution of which one of the following in alcohol-e...

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  4. Choose the incorrect statement in respect of physisorption ?

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  5. In the adsorption of a gas on solid, Freundlich isotherm is obeyed. Th...

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  6. Which one of the following is not explained by adsorption?

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  7. The correct ascending order of adsorption of the following Gases on th...

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  8. Which of the following Statements is incorrect about physisorption?

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  9. Volume of a colloidal particle, Vc as compared to the volume of a solu...

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  10. Which of the following electrolyte will have maximum flocculation valu...

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  11. In Langmuir's model of adsorption of a gas an a solid surface.

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  12. Gold numbers of protective colloids A, B, C and D are 0.50, 0.01, 0.10...

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  13. Which of the following statements is incorrect regarding physisorption...

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  14. For a linear plot of log (x/m) versus log P in a Freundlich adsorption...

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  15. The coagulating power of electrolytes having ions Na^+, Al^(3+) and Ba...

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  16. 3g of activated charcoal was added to 50 mL of acetic acid solution (0...

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  17. For a linear plot of log (x/m) versus log P in a Freundlich adsorption...

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  18. On adding one mL of solution of 10% NaCl to 100 mL of gold sol in the ...

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  19. When an excess and a very dilute aqueous solution of KI is added to a ...

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  20. Which one of the following impurities present in colloidal solution ca...

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