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प्रश्न
Statement: To stop bleeding from an injury, ferric chloride can be applied. Which comment about the statement is justified?
विकल्प
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
Why are lyophillic colloidal sols are more stable than lyophobic colloidal sol?
Explain any one method for coagulation.
Which one of them is not a surfactant?
Which one of the is not a surfactant?
Which one of the is not a surfactant?
Which one of the is not a surfactant?
Which one of the is not a surfactant?
Which one of the is not a surfactant?
