A Sample Contains Ba₃(PO₄)₂, CdS, AgCl, NH₄Cl, and ZnS

question 12

Multiple Choice

A sample contains Ba₃(PO₄) ₂, CdS, AgCl, NH₄Cl, and ZnS. Identify the precipitate formed after the addition of 6 mol L^-1 HCl followed by the addition of H₂S and 0.2 mol L^-1 HCl.

• A) Ba₃(PO₄)₂
• B) CdS
• C) AgCl
• D) NH₄Cl
• E) ZnS

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