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Why does bleeding stop by rubbing moist ...

Why does bleeding stop by rubbing moist alum?

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Blood is a colloidal sol. When we rub the injured part with moist alum then coagulation of blood takes place. Hence, main reason is coagulation, which stops the bleeding.
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NCERT EXEMPLAR-SURFACE CHEMISTRY-Surface Chemistry
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  2. On the basis of Hardy-schulze rule explain why the coagulating power o...

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  3. Why does bleeding stop by rubbing moist alum?

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

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

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  6. What happens when dialysis is prolonged?

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

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

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

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  10. Given an example where physisorption changes to chemisorption with ris...

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  11. Why is desorption important for a substance to act as good catalyst?

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  12. What is the role of diffusion in heterogeneous catalyst?

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  13. How does a solid catalyst enhance the rate of combination of gaseous ...

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  14. Do the vital functions of the body such as digestion get affected duri...

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  15. Method of formation of solution is given in Column I. Match it with th...

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  16. Match the statement given in Column I with the phenomenon given in Col...

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  17. Match the items given in Column I and Column II. {:(,"Column I","Co...

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  18. Match the types of colloidal systems given in Column I with the name g...

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  19. Match the items of Column I and Column II. {:("Column I","Column II...

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  20. Match the items of Column I and Column II. {:("Column I","Column II...

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