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Electrolytic Cell

Deduce from t...

Question

Deduce from the following Eº values of half cells, what combination of two half cells would result in a cell with the largest potential :

(i) and (iii)

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(i) and (iv)

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(ii) and (iv)

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(iii) and (iv)

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Solution

The correct option is C
(ii) and (iv)

Calculate Eºcell for each.

For (C), Eºcell is maximum.

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Similar questions

Deduce from the following $E^{⊖}$ values of half cells, what combination of two half cells would results in a cell with the largest potential ?

I. $A + e^{-} \to A^{⊖}, E^{⊖} = - 0.24 V$

II. $B^{⊖} + e^{-} \to B^{2 -}, E^{⊖} = + 1.25 V$

III. $C^{⊖} + 2 e^{-} \to C^{3 -}; E^{⊖} = - 1.25 V$

A + 2 e^{-} \to D^{2 -}; E^{⊖} = + 0.68 V

E^{o}

A^{3 -} \to A^{2 -} + e; E^{o} = 1.5 V

B^{2 +} + e \to B^{+}; E^{o} = 2.1 V

C^{2 +} + e \to C^{+}; E^{o} = + 0.5 V

D \to D^{2 +} + 2 e; E^{o} = - 1.5 V

E_{c e l l}^{0}

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