In a Qualitative Cation Analysis,the Unknown Ion Is Precipitated by HCl(aq),remains

question 63

Multiple Choice

In a qualitative cation analysis,the unknown ion is precipitated by HCl(aq) ,remains as a chloride solid in hot water,and the precipitate turns black upon addition of aqueous ammonia.The unknown ion is ________.

• A)Hg₂²⁺
• B)Pb²⁺
• C)Ag⁺
• D)K⁺
• E)Cd²⁺

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