Answer
$H_{2}O_{2} < I^{-} < Sn^{2+} < Zn < Al$
Work Step by Step
Reducing strengths of each are given below:
$Zn: -0.763$
$I^{-}: +0.536$
$Sn^{2+}: -0.136$
$H_{2}O_{2}: +1.776$
$Al: -1.66$
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