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It is difficult to stop bleeding from a ...

It is difficult to stop bleeding from a cut in human body at high altitude. Why?

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For answer, consult section 27 (applications of colloida).
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Assertion : It is difficult to stop bleeding from a cut in the body at high altitudes. Reason : The atmospheric pressure at high altitude is lesser than the blood pressure.

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Statement : to stop bleeding from an injury ferric chloride can be applied.

DINESH PUBLICATION-SURFACE CHEMISTRY -SHORT ASNWER TYPE QUESTIONS
  1. What happens when aeledtric field is applied to colloidal solution ?

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  2. What causes Brownian motion in colloidal despersion ?

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

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

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  5. Why does leather get hardened after tanning ?

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  6. Cottrell precipitator acts on which of the following principles ?

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

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  8. Hardy-schulze rule sates that :-

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  9. It is difficult to stop bleeding from a cut in human body at high alti...

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

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  11. Why do physisorption and chemisorption behave differently with rise in...

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  12. What happens when dialysis is prolonged ?

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  13. Why do we store silver chloride in dark coloured bottles?

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  14. In the adsorption of oxalic acid on activated charcoal, the activated ...

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  15. Rivers from land, add minerals to sea water. Discuss how ?

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  16. Write differences between physisorption and chemisorption.

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  17. Explain why transition metals and their many compounds act as good cat...

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  18. What role does adsorption play in heterogeneous catalysis ?

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  19. How does a catalyst work?

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

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