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NEETChemistryElectrochemistry

What happens to zinc and copper electrodes when E ext is greater than 1.1 V in a Daniell cell?

Options

  1. AZn dissolves at anode, and copper deposits at cathode.
  2. BCopper dissolves at anode, and Zn deposits at cathode.
  3. CNo chemical reaction occurs.
  4. DThe cell potential decreases.

Correct answer

B. Copper dissolves at anode, and Zn deposits at cathode.

Step-by-step solution

When E ext is greater than 1.1 V, zinc is deposited at the zinc electrode, and copper dissolves at the copper electrode.

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