A variable, opposite external potential (E_\text{ext}) is applied to the cell Zn|Zn^{2+}(1M)||Cu^{2+}(1M)|Cu of potential 1.1 V. When E_\text{ext} < 1.1V and E_\text{ext} > 1.1V,respectively electrons flow from : [Main 10 April 2015]

Correct Answer is : anode to cathode in both cases

anode to cathode and cathode to anode

cathode to anode and anode to cathode

JEE Main 10 April 2015 Paper

Section: Chemistry

Question : 38 of 90

Marks: +1, -0

A variable, opposite external potential (Eext) is applied to the cell Zn|Zn2+(1M)||Cu2+(1M)|Cu of potential 1.1 V. When Eext<1.1V and Eext>1.1V,respectively electrons flow from :

[Main 10 April 2015]

anode to cathode and cathode to anode
cathode to anode and anode to cathode
cathode to anode in both cases
anode to cathode in both cases

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