JEE Main 2014 · 9 Apr · Shift 1 · Chemistry Q33

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ChemistrySingle correct+4 / -1Question 33 of 90

The standard electrode potentials $\left(E^\circ_{\ce{M+}/\ce{M}}\right)$ of four metals A, B, C and D are $-1.2$ V, 0.6 V, 0.85 V and $-0.76$ V, respectively. The sequence of deposition of metals on applying potential is :

A, C, B, D

B, D, C, A

C, B, D, A

D, A, B, C

Answer and worked solution

Official answer: C

Ions with the highest reduction potential are deposited first:
$\text{C }(0.85)>\text{B }(0.6)>\text{D }(-0.76)>\text{A }(-1.2).$

Topics:Electrolysis and Faraday's laws Galvanic cells and EMF

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JEE Main 2014 · 9 Apr · Shift 1, Chemistry question 33