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  4. When applied external opposite potential in case of Daniell cell is less than 1.1 V, then

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Q. When applied external opposite potential in case of Daniell cell is less than $1.1\, V$, then

Electrochemistry

Solution:

When $E_{\text {ext }}<1.1 \,V$
(i) Electrons flow from zinc electrode to copper electrode, hence, current flows from copper to zinc electrode.
(ii) Zinc dissolves at anode and copper deposites at cathode.