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JEE Main 202124 FebruaryMorning Shift

Exam: JEE Main
Year: 2021
Date: 24 February
Shift: Morning Shift
Subject: Chemistry
Chapter: d and f Block Elements

JEE Main 2021 · 24 February · Morning Shift · Chemistry · d and f Block Elements

The electrode potential of M ^ 2 + / M of 3 d-series elements shows...

The electrode potential of

{M}^{2 +} / M

of

3

d-series elements shows positive value for?

Options

A $Co$
B $Fe$
C $Zn$
D $Cu$

Correct answer

D. $Cu$

Step-by-step solution

Only copper shows positive value for electrode potential of ${M}^{2 +} / M$ of $3d -$ series elements.

${E}^{Θ}\left({Cu}^{2 +} / Cu\right) = + 0 . 34$

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