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  4. Electrode potential data of few cells is given below. Based on the data, arrange the ions in increasing order of their reducing power :- Fe(. aq .)3 ++e- arrow (Fe)2 + (. aq .);E° =+0.77V (Al)3 + (. aq .)+3e- arrow (Al)(. s .);E° =-1.66V (Br)2 (. aq .)+2e- arrow 2Br(. aq .)-;E° =+1.09V

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Q. Electrode potential data of few cells is given below. Based on the data, arrange the ions in increasing order of their reducing power :-
$Fe_{\left(\right. aq \left.\right)}^{3 +}+e^{-} \rightarrow \left(Fe\right)^{2 +}\_{\left(\right. aq \left.\right)}^{};E^\circ =+0.77V$
$\left(Al\right)^{3 +}\_{\left(\right. aq \left.\right)}^{}+3e^{-} \rightarrow \left(Al\right)_{\left(\right. s \left.\right)};E^\circ =-1.66V$
$\left(Br\right)_{2 \left(\right. aq \left.\right)}+2e^{-} \rightarrow 2Br_{\left(\right. aq \left.\right)}^{-};E^\circ =+1.09V$

NTA AbhyasNTA Abhyas 2020

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