Question

The standard electrode potential (E⁰) values of Al³⁺/Al, Au³⁺/Au and Pb²⁺/Pb are −1.66 V, 1.50 V and −0.126 V, respectively. The CORRECT increasing order of reducing power of the metal is:

विकल्प

• Au < Pb < Al

• Pb < Au < Al

• Au < AI < Pb

• Al < Pb < Au

Answer 1

Au < Pb < Al

Explanation:

The metal's reducing power is proportional to its reduction potential.

As a result, the decreasing power order is Au < Pb < Al.