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ChemistrySingle correct+4 / -1Question 68 of 90

JEE Main 2022 · 27 Jun · Shift 2, Chemistry question 68

In 3d series, the metal having the highest M2+/M\mathrm{M^{2+}/M} standard electrode potential is

Choose one option
Answer and worked solution

Official answer: C

E°E° (M²⁺/M). Cr −0.91, Fe −0.44, Cu +0.34, Zn −0.76 V. Cu is highest.

(C)

Topics:Transition element propertiesGalvanic cells and EMF
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