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  4. An aqueous solution containing one mole per litre each of Cu((NO)3)2,(AgNO)3,(Hg)2((NO)3)2 and Mg((NO)3)2 is being electrolysed using inert electrodes. The values of standard reduction potentials are: E° Ag+ / Ag=+0.80V EHg2+ 2 / Hg=+0.79V E° Cu+ 2 / Cu=+0.34V E° Mg+ 2 / Mg=-2.37V on continuous electrolysis, the sequence of deposition of metals on the cathode will be :-

Q. An aqueous solution containing one mole per litre each of and is being electrolysed using inert electrodes. The values of standard reduction potentials are :

on continuous electrolysis, the sequence of deposition of metals on the cathode will be :-

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Solution:

metal can not be deposited at cathode from aqueous solution.

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