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प्रश्न
Why does the bleeding stop by rubbing moist alum?
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उत्तर
Blood is a colloidal sol. When we nib the injured part with moist alum then coagulation of blood takes place. Hence main reason is coagulation, which stops the bleeding. Therefore bleeding stop by rubbing moist alum.
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संबंधित प्रश्न
The most effective electrolyte for the coagulation of As2S3 Sol is ____________.
In an electrical field, the particles of a colloidal system move towards the cathode. The coagulation of the same sol is studied using
I. K2SO4
II. Na3PO4
III. K4[Fe(CN)6]
IV. NaCI
Their coagulating power should be
The coagulation values in millimoles per litre of the electrolytes used for the coagulation of As2S3 are given below
(I) (NaCl) = 52
(II) (BaCl2) = 0.69
(III) (MgSO4) = 0.22
The correct order of their coagulating power is:
On which of the following properties does the coagulating power of an ion depend?
Peptising agent is added to convert precipitate into colloidal solution. Explain with an example.
Why are lyophillic colloidal sols are more stable than lyophobic colloidal sol?
Explain any one method for coagulation.
Write a note on electro osmosis.
Which one of them is not a surfactant?
Which one of the is not a surfactant?
