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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
Assertion: Coagulation power of Al3+ is more than Na+.
Reason: greater the valency of the flocculating ion added, greater is its power to cause precipitation.
Statement: To stop bleeding from an injury, ferric chloride can be applied. Which comment about the statement is justified?
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The most effective electrolyte for the coagulation of As2S3 Sol is ____________.
The phenomenon observed when a beam of light is passed through a colloidal solution is ____________.
What happens when a colloidal sol of Fe(OH)3 and As2S3 are mixed?
Write a note on electro osmosis.
Which one of the is not a surfactant?
Which one of the is not a surfactant?
Which one of the is not a surfactant?
