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JEE Main Chemistry Class 11 Electrochemistry Part 1 Questions

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Question : 71

Total: 100

The standard potentials of Ag+∕Ag,Hg22+∕2Hg,Cu2+∕Cu and Mg2+∕Mg electrodes are 0.80,0.79,0.34 and −2.37V, respectively. An aqueous solution which contains one mole per litre of the salts of each of the four metals is electrolyzed. With increasing voltage, the correct sequence of deposition of the metals at the cathode is

[Online May 19, 2012]

Ag,Hg,Cu,Mg
Cu,Hg, Ag only
Ag, Hg, Cu only
Mg,Cu,Hg,Ag

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