When a dilute aqueous solution of is added to a volumetric excess of dilute solution, a stable lyophobic sol is formed. What precise chemical structure dictates the primary electrical double layer of

Question

When a dilute aqueous solution of $AgNO_3$ is added to a volumetric excess of dilute $KI$ solution, a stable lyophobic $AgI$ sol is formed. What precise chemical structure dictates the primary electrical double layer of this sol?

Prashant Kotian · Accepted Answer

Correct answer: C. In the presence of excess , the common iodide ion () is preferentially adsorbed onto the crystal lattice, forming a negatively charged primary layer. The highly mobile ions form the diffuse secondary layer in the medium, yielding the structure .

💡 Solution & Explanation

Practice 22,000+ questions like this