KVPY SX SB Exam 2015 Question Paper

Question : 46 of 120

Marks: +1, -0

The standard reduction potentials (in V) of a few metal ion/metal electrodes are given below.

Cr ^{3+} \/Cr = -0.74;

Cu^{2+}\/Cu = +0.34;

Pb^{2+}\/Pb = -0.13;

Ag^{+}\/Ag = +0.8.

The reducing strength of the metals follows the order

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