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The maximum current can be drawn from which of the following cells?
${Z n}_{(s)} | {Z n}_{(0.2 M)}^{2 +} | | {C u}_{(0.2 M)}^{2 +} | C u (s)$
${Z n}_{(s)} | {Z n}_{(0.002 M)}^{2 +} | | {C u}^{2 +}_{(0.2 M)} | {C u}_{(s)}$
${Z n}_{(s)} | {Z n}_{(0.2 M)}^{2 +} | | {C u}_{(0.002 M)}^{2 +} | {C u}_{(s)}$
All of these

A

{Z n}_{(s)} | {Z n}_{(0.2 M)}^{2 +} | | {C u}_{(0.2 M)}^{2 +} | C u (s)

B

All of these

C

{Z n}_{(s)} | {Z n}_{(0.2 M)}^{2 +} | | {C u}_{(0.002 M)}^{2 +} | {C u}_{(s)}

D

{Z n}_{(s)} | {Z n}_{(0.002 M)}^{2 +} | | {C u}^{2 +}_{(0.2 M)} | {C u}_{(s)}

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For cell reaction, $Z n + C u^{2 +} \to Z n^{2 +} + C u,$ cell representation is

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Q2

What is the voltage of the voltaic cell

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at

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?

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[Note:

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Q5

E_{1}, E_{2}, E_{3}

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(ii)

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(iii)

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Which one of the following is true?

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