Chemistry - Surface Chemistry Question with Solution | TestHub

ChemistrySurface ChemistryColloids and their ClassificationsMedium2 min

ChemistryMediumsingle choice

Equal volume each of two sols of $A g I$ , one obtained by adding $AgNO_{3}$ to slight excess of $K I$ and another obtained by adding $K I$ to slight excess of $AgNO_{3}$ are mixed together. Then:

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Answer:

Solution:

When $A g N O_{3}$ is added to excess $K I$ , $A g I / I^{-}$ sol is formed. When $K I$ is added to excess $A g N O_{3}$ , $A g I / A g^{+}$ sol is formed. These two sols have opposite charges and mixing them leads to mutual coagulation.

Stream:JEESubject:ChemistryTopic:Surface ChemistrySubtopic:Colloids and their Classifications

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