Chemistry · Electrochemistry

Given standard reduction potentials: E°Cu2+|Cu = +0.34 V and E°Zn2+|Zn = -0.76 V. Identify the incorrect statement for the given electrochemical cell from the options below:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1If Eext = 1.1 V, no flow of electrons or current occurs
2If Eext < 1.1 V, Zn dissolves at the anode and Cu deposits at the cathode
3If Eext > 1.1 V, Zn dissolves at the Zn electrode and Cu deposits at the Cu electrode✓
4If Eext > 1.1 V, electrons flow from Cu to Zn

Correct answer

If Eext > 1.1 V, Zn dissolves at the Zn electrode and Cu deposits at the Cu electrode

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