JEE MAIN - Chemistry (2016 - 9th April Morning Slot - No. 18)
What will occur if a block of copper metal is dropped into a beaker containing a
solution of 1M ZnSO4?
The copper metal will dissolve and zinc metal will be deposited.
The copper metal will dissolve with evolution of hydrogen gas.
The copper metal will dissolve with evolution of oxygen gas.
No reaction will occur.
Explanation
In the reaction of copper with zinc ions, zinc is more active (easily oxidised) than copper; thus, no reaction will take place.
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