Question

what happens when silver nitrate solution is added to potassium iodide solution

Answer 1

negative charged sol of silver iodide is produced due to adsorption of I- ions on AgI solution

Answer 2

When silver nitrate solution is added to potassium iodide

When Silver nitrate$(AgNO_3)$) is added to the potassium iodide (KI), we get a negative charged solution because iodide gets adsorbed from the potassium iodide solution and two new products are formed. Where $AgNO_3$ is a colourless solid and KI is a yellow they are combined to produce the white solid.

One is Silver iodide (AgI) which is inorganic in nature and the other one is potassium nitrate $(KNO_3)$ which is a strong oxidizer and is used in making gunpowder.

$AgNO_3 +KI \rightarrow AgI +KNO_3$