Analytical ChemistryMedium
Question
Which of the following hydrogen halides react(s) with AgNO3(aq) to give a precipitate that dissolves in Na2S2O3(aq)?
Options
A.HCl
B.HF
C.HBr
D.HI
Solution
HX + AgNO3 → AgX ↓ + HNO3 (X = Cl, Br I)
AgX + 2Na2S2O3 → Na3 [Ag(S2O3)2] + NaX
AgX + 2Na2S2O3 → Na3 [Ag(S2O3)2] + NaX
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