In C u-Z n cell -BHU 1981-

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Electrochemical Cell

In C u-Z n ce...

Question

[BHU 1981]

Reduction occurs at the copper cathode

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Oxidation occurs at the copper cathode

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Reduction occurs at the anode

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Chemical energy is converted to light energy

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[BHU 1981]

Q. In the cell,

Z n | Z n^{2 +} | | C u^{2 +} | C u

Z n + C u^{2 +} \to Z n^{2} + C u

Z n | Z n^{2 +} | | C u^{2 +} | C u

E_{z n}^{⊖} = 0.736 V; E_{(c u)}^{⊖} = - 0.35 V

In an electrochemical cell represented as,

Zn | Zn²⁺₍c₁₎ || Cu²⁺₍c₂₎| Cu

So in this cell,

a.Zn is oxidized

b.Zn is reduced

c.Cu is oxidized

d.Cu is reduced

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