JEE Main 2019 — Chemistry solution

JEE Main2019Chemistry

Given that

$E_{O_{2} / H_{2} O}^{Θ} = + 1.23 V; E_{S_{2} O_{8}^{2 -} / S O_{4}^{2 -}}^{Θ} = 2.05 V$

$E_{B r_{2} / B r^{-}}^{Θ} = + 1.09 V; E_{A u^{3 +} / A u}^{Θ} = + + 1.4 V$

The strongest oxidizing agent is

Solution

More positive is the reduction potential

stronger is the oxidising agent.

Reduction potential is maximum for S₂O₈^2–

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