1.

Which of the following solution will turn blue when placed in copper vessel?A. `AgNO_(3)`B. `NaCl`C. `ZnSO_(4)`D. `KNO_(3)`

Answer» Correct Answer - A
`2AgNO_(3)+CurarrCu(NO_(3))_(2)+2Ag`
Due to the presence of `Cu^(2+)(aq)` ions in solution it will turn blue.


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