Question 1
In a qualitative cation analysis, the unknown ion is not precipitated by aqueous solutions of HCl(aq), H
2S(aq), or CO
32-(aq). A flame test produced a violet flame. The unknown ion is ________.
◦ Ag
+◦ Pb
2+◦ Fe
2+◦ K
+◦ NH
4+Question 2
In a qualitative cation analysis, the unknown ion is not precipitated by HCl or H
2S, but is precipitated by CO
32-. The unknown ion is ________.
◦ Ag
+◦ Mn
2+◦ Ca
2+◦ K
+◦ Al
3+