A sol of AgI is prepared by mixing equal volu | vedclass

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(D) The reaction between $AgNO_{3}$ and $KI$ is: $AgNO_{3} + KI \longrightarrow AgI(s) + KNO_{3}$.Since equal volumes are mixed,the number of moles of

Vedclass · Accepted Answer

Sol obtained is a negative sol with $I^{-}$ adsorbed on $AgI$.

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(D) The reaction between $AgNO_{3}$ and $KI$ is: $AgNO_{3} + KI \longrightarrow AgI(s) + KNO_{3}$.Since equal volumes are mixed,the number of moles of $KI$ $(0.2 \ M)$ is greater than the number of moles of $AgNO_{3}$ $(0.1 \ M)$.Thus,$KI$ is in excess.The $AgI$ particles preferentially adsorb the common ion present in excess from the dispersion medium.In this case,$I^{-}$ ions are in excess and are adsorbed on the surface of $AgI$ particles,resulting in a negatively charged sol.

List-$I$	List-$II$
$A$. Negatively charged sol	$I$. $Fe_{2}O_{3} \cdot xH_{2}O$
$B$. Macromolecular colloid	$II$. $CdS$ sol
$C$. Positively charged sol	$III$. Starch
$D$. Cheese	$IV$. $A$ gel

$A$ sol of $AgI$ is prepared by mixing equal volumes of $0.1 \ M \ AgNO_{3}$ and $0.2 \ M \ KI$. Which of the following statements is correct?

Similar Questions

Which one of the following does not involve coagulation?

Match List-$I$ with List-$II$.

List-$I$ List-$II$

$A$. Negatively charged sol $I$. $Fe_{2}O_{3} \cdot xH_{2}O$

$B$. Macromolecular colloid $II$. $CdS$ sol

$C$. Positively charged sol $III$. Starch

$D$. Cheese $IV$. $A$ gel

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