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Chemistry · 2017
JEE Main 2017 · 2017-04-02 Offline · Q36
Given E_Cl_2 / Cl^-^°=1.36 V, E_Cr^3+ / Cr^°=-0.74 V; E_Cr_2 O_7^2- / Cr^3+^°=1.33 V, E_MnO_4^- / Mn^2+^°=1.51 V. Among the following, the strongest…
Given
$$\begin{aligned}
& \mathrm{E}_{\mathrm{Cl}_2 / \mathrm{Cl}^{-}}^{\circ}=1.36 \mathrm{~V}, \mathrm{E}_{\mathrm{Cr}^{3+} / \mathrm{Cr}}^{\circ}=-0.74 \mathrm{~V} \\
& \mathrm{E}_{\mathrm{Cr}_2 \mathrm{O}_7^{2-} / \mathrm{Cr}^{3+}}^{\circ}=1.33 \mathrm{~V}, \mathrm{E}_{\mathrm{MnO}_4^{-} / \mathrm{Mn}^{2+}}^{\circ}=1.51 \mathrm{~V} .
\end{aligned}
$$
Among the following, the strongest reducing agent is :
Official answer
(3)
Cr
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JEE Main 2017 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.