Metallic gold will not dissolve in nitric acid alone, but will dissolve in a mixture of nitric and h — Descriptive Chemistry Chemistry Question
Question
Metallic gold will not dissolve in nitric acid alone, but will dissolve in a mixture of nitric and hydrochloric acids. Which is the best explanation for this observation?
A.✓ Correct
Chloride ion complexes gold(III), stabilizing it as AuCl4–.
B.
Nitric acid is a stronger oxidant in more acidic solution.
C.
Nitric and hydrochloric acids react to form NO2Cl, which reacts readily with metallic gold.
D.
Nitric and hydrochloric acids react to form Cl2, which reacts readily with metallic gold.
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