JEE Main (Jan...

JEE Main (Jan 11) - Slot 1 | 2019

Q. For the cell

Z n (s) | Z n^{2 +} (a q) | | M^{x +} (a q) | M (s)

, different half cells and their standard electrode potentials are given below:

$M^{x +} (a q / M (s))$	$A u^{3 +} (a q) / A u (s)$	$A g^{+} / A g (s)$	$F e^{3 +} (a q) / F e^{2 +} (a q)$	$F e^{2 +} (a q) / F e (s)$
$E_{M^{x +} / M^{/ (V)}}^{o}$	$1.40$	$0.80$	$0.77$	$- 0.44$

E_{Z n^{2 +} / Z n}^{o} = - 0.76 V

, which cathode will give a maximum value of

E_{c e l l}^{o}

per electron transferred ?

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