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प्रश्न
Statement: To stop bleeding from an injury, ferric chloride can be applied. Which comment about the statement is justified?
पर्याय
It is not true, ferric chloride is a poison.
It is true, Fe3+ ions coagulate blood which is a negatively charged sol.
It is not true; ferric chloride is ionic and gets into the blood stream.
It is true, coagulation takes place because of formation of negatively charged sol with Cl−.
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उत्तर
It is true, Fe3+ ions coagulate blood which is a negatively charged sol.
APPEARS IN
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.
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
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?
Why does the bleeding stop by rubbing moist alum?
Comment on the statement:
Colloid is not a substance but it is a state of substance.
Explain any one method for coagulation.
Which one of the is not a surfactant?
Which one of the is not a surfactant?
Which one of the is not a surfactant?
