Question

Aluminium displaces hydrogen from dilute HCl whereas silver does not. The E.M.F. of a cell prepared by combining $Al /Al^{+3}$ and $Ag/Ag^{+}$ is $2.46\, V.$ The reduction potential of silver electrode is $+ 0.80\, V$. The reduction potential of aluminium electrode is :

• A. 3.26 V
• B. -1.66 V
• C. + 1.66 V
• D. -3.26 V

Answer 1

Answer: (B)

-1.66 V

Answer 2

Answer (b) -1.66 V