Statement A: For the Daniell cell Zn|Zn2+||Cu2+|Cu with Ecell=1.1 V,the application of opposite potential greater than 1.1 V results into flow of electron from Cu(cathode) to Zn(anode).Statement B: Zn is deposited at anode and Cu is dissolved at cathode.
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a
Both Statement A and Statement B are true
b
Both Statement A and Statement B are false
c
Statement A is true but Statement B is false.
d
Statement A is false but Statement B is true.
answer is A.
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Detailed Solution
On applying an external voltage greater than 1.1 V in a Daniel cell,the current flows from Zn to Cuand electrons flow from Cu to ZnZn is deposited at Zn electrode and Cu dissolves at Cu electrode.The reaction is, Zn+2+Cu→Zn+Cu+2