The addition of silver nitrate solution, followed by concentration ammonia solution. to a solution of potassium iodide.?
-
AgNO3 reacts with KI to give a yellow ppt. of AgI .On addition of excess NH3 it dissolves forming complex Ag(NH3)2I
AgNO3(aq) + KI(aq) --> AgI(s) + KNO3(aq)
AgI + 2 NH3 --> Ag(NH3)2I
AgNO3(aq) + KI(aq) --> AgI(s) + KNO3(aq)
AgI + 2 NH3 --> Ag(NH3)2I