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What is collodion?...

What is collodion?

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**Step-by-Step Solution:** 1. **Definition of Collodion**: Collodion is a type of solution that is primarily composed of microcellulose. 2. **Concentration**: The specific concentration of collodion mentioned is 4%. This means that in a given volume of the solution, 4% of it is made up of microcellulose. 3. **Solvent Composition**: Collodion is dissolved in a mixture of alcohol and ether. These solvents are crucial as they help to dissolve the microcellulose and create a homogeneous solution. ...
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Assertion (A) An ordinary filter paper impregnated with collodion solution stops the flow of colloidal particles. Reason (R) Pore size of the filter paper becomes more than the size of colloidal particle. (a)Assertion and reason both are correct and the reason is correct explanation of assertion. (b)Assertion and reason both are correct but reason does not explain assertion. (c)Assertion is correct, but reason is incorrect. (d)Both assertion and reason are incorrect.

NCERT EXEMPLAR ENGLISH-SURFACE CHEMISTRY-Short Answer Type Qrestions
  1. How does it become possible to cause artificial rain by spraying silve...

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  2. Gelatin which is a peptide is added in ice-creams. What can be its ro...

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  3. What is collodion?

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  4. Why do we add alum to purify water ?

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  5. Which phenomenon occurs when an electric field is applied to a colloid...

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  6. What causes Brownian motion in colloidal dispersion?

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  7. A colloid is formed by adding FeCl(3) in excess of hot water. What wil...

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  8. How do emulsifiers stabilise emulsion ? Name two emulsifiers.

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  9. Why are some medicines more effective in the colloidal form?

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  10. Why does leather get hardened after tanning?

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  11. How does the precipitation of colloidal smoke take place in Cottrell p...

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  12. How will you distiguish between dispersed phase and dispersion medium ...

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  13. On the basis of Hardy-schulze rule explain why the coagulating power o...

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  14. Why does bleeding stop by rubbing moist alum?

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  15. Why is Fe(OH)(3) colloid positively charged when prepared by adding Fe...

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  16. Why do physisorption and chermisorption behave differently with rise i...

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  17. What happens when dialysis is prolonged?

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  18. Why does the white precipitate of silver halide become coloured in the...

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  19. What is the role of activated charcoal in gas mask used in coal mines?

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  20. How does a delta form at the meeting place of sea and river water?

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