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A solution containing 1 mol per litre o...

A solution containing `1 mol` per litre of each `Cu(NO_(3))_(2), AgNO_(3),` and` Hg_(2)(NO_(3))_(2)` is being electrolyzed by using inert electrodes. The values of standard electrode potentials in volts `(` reduction potential `)` are
`Ag|Ag^(o+)=+0.80, 2Hg|Hg_(2)^(2+)=+0.79`
`Cu|Cu^(2+)=+0.34,Mg|Mg^(2+)=-2.37`.
With increasing voltage, the sequence of deposition of metals at the cathode will be

A

Ag,Hg,Cu,Mg

B

Mg,Cu,Hg,Ag

C

Ag,Hg,Cu

D

Cu,Hg,Ag

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The correct Answer is:
c
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