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Q.44: Durin electrolysis of aqueous CuSO4 usingcopper electrodes , there is competition among OH-, SO42-and copper electrode to get oxidise at anode :(i) Cu - Cu2+ + 2 e- ; E0Cu2+/Cu = + 0.34 V(ii) 2 H2O (l) - O2(g) + 4 H+(aq) + 4 e-; E0red = +1.23 V(iii) 2 SO42- - S2O82- + 2 e- ; E0red = +2.05 VWhich reaction will be preffered on anode :(a) (i) (b) (ii) (c) (iii) (d) none of thes |
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Answer» घर में गैस खत्म होने के बाद इमरजेंसी में भी रोटियां पकाई जा सकती है |
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