The solution in a beaker turns blue if. | CHEMISTRY - REDOX REACTIONS AND ELECTRODE PROCESSES | SolveeIt

Question

The solution in a beaker turns blue if.

Cu electrode is placed in $ZnSO_{4}$ solution

Cu electrode is placed in $AgNO_{3}$ solution

Cu electrode is placed in $Al_{2}(SO_{4})_{3}$ solution

Cu electrode is placed in $FeSO_{4}$ solution.

Answer

Cu electrode is placed in $AgNO_{3}$ solution

Explanation

Solution

: Cu being more reactive than Ag due to lower electrode potential displaces Ag from $AgNO_{3}$ solution. It is dissolved in the solution in the form of $Cu^{2 +}$ ions.

Question: The solution in a beaker turns blue if....

Solution