Analytical ChemistryHard
Question
Which of the following reagents can be used for making the distinction between AgCl and AgI ?
Options
A.Sodium arsenite solution.
B.Dilute ammonia solution.
C.Potassium cyanide solution.
D.Dilute HNO3.
Solution
(A) 3AgCl ↓ + AsO33- → Ag3AsO3 ↓(yellow) + 3Cl-
AgI is unaffected by this treatment.
(B) AgCl + 2NH3 → [Ag(NH3)2]Cl
AgI is not soluble in dilute ammonia solution.
(C) Both soluble in potassium cyanide, forming soluble complexes.
(D) Both insoluble in dilute HNO3.
AgI is unaffected by this treatment.
(B) AgCl + 2NH3 → [Ag(NH3)2]Cl
AgI is not soluble in dilute ammonia solution.
(C) Both soluble in potassium cyanide, forming soluble complexes.
(D) Both insoluble in dilute HNO3.
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