Multiple Choice
In a qualitative cation analysis, the unknown ion is precipitated by HCl, remains as a chloride solid in hot water, and the precipitate turns black upon addition of ammonia. The unknown ion is ________.
A) Hg22+
B) Pb2+
C) Ag+
D) K+
E) Cd2+
Correct Answer:

Verified
Correct Answer:
Verified
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