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1. |
When \[{{H}_{2}}S\]is passed through a mixture containing \[C{{u}^{+2}}\], \[N{{i}^{+2}}\], \[Z{{n}^{+2}}\] in acidic solution then ion will precipitate [RPMT 2002] |
A. | \[C{{u}^{+2}}\], \[N{{i}^{+2}}\] |
B. | \[N{{i}^{+2}}\] |
C. | \[C{{u}^{+2}}\], \[Z{{n}^{+2}}\] |
D. | \[C{{u}^{+2}}\] |
Answer» E. | |