The correct value of cell potential in volt for the reaction that occurs when the following two half-cells are connected, is
[2023]
+ 1.77 V
+ 2.65 V
+ 0.01 V
+ 0.89 V
(1)
The standard electrode potential values of are , , and , respectively. The correct decreasing order of reducing power of the metal is [2019]
Ag > Cr > Al > K
K > Al > Cr > Ag
K > Al > Ag > Cr
Al > K > Ag > Cr
(2)
Higher the value of , stronger is the oxidising power. Thus, the decreasing order of reducing power of the metal is K > Al > Cr > Ag.