JEE Main 2021 · 24 Feb · Shift 1 · Chemistry Q37

ChemistrySingle correct+4 / -1Question 37 of 90

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

Answer and worked solution

Official answer: D

Copper is the only 3d metal with a positive $E^\circ(\mathrm{M^{2+}/M})$ (+0.34 V).

(D)

Topics:Transition element properties Galvanic cells and EMF

JEE Main 2021 · 24 Feb · Shift 1, Chemistry question 37