Question

When KI is added to silver nitrate

Answer 1

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When KI is added to silver nitrate then negative charged sol is formed due to adsorption of iodide ions from KI onto the AgI precipitate. If KI is added to AgNO3 then postive sol is formed due to Ag+ ions in solution which get adsorbed on AgI.

$\green{ hope \: it \: helps}$

Answer 2

When KI is added to silver nitrate then negative charged sol is formed due to adsorption of iodide ions from KI onto the AgI precipitate. If KI is added to AgNO3 then postive sol is formed due to Ag+ ions in solution which get adsorbed on AgI.