AP EAMCET Engineering 2018 Apr 22 Shift 1 Paper

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Question : 142 of 160

Marks: +1, -0

When an aqueous solution of CuCl2 is electrolysed using Pt inert electrodes, the reaction at cathode and anode respectively are

4H2O(l)
+4e−
→
2H2(g) + 4OH(aq)− : 2H2O(l)
−4e−
→
O2(g) + 4H(aq)+
2Cu(aq)2+
+4e−
→
2Cu(s) : 2H2O(l)
−4e−
→
O2(g) + 4H(aq)+
Cu(aq)2+
+2e−
→
Cu(s) : 2Cl(aq)−
−2e−
→
Cl2(g)
2H2O(l)
+2e−
→
H2(g) + 2OH(aq)− : 2Cl(aq)−
−2e−
→
Cl2(g)

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