The standard electrode potentials of four elements A, B, C and D are `-3.05, 1.66, -0.40` and 0.80 volt. The highest chemical activity will be shown by :

The standard electrode potentials of four elements A,B,C,D are - 3.05,- 1.66,-0.40 and 0.80 volts respectively. The highest chemical activity will be shown by:

The standard reduction electrode potentials of your metals A,B, C and D are -3.65,-1.68,-0.80 and +0.86 .The highest chemical activity will be exhibited by :

The standard electrode potential of four electrodes I, II, III and IV are -2.65, -1.72, -0.80 and 0.72 V respectively. The highest chemical activity will be exhibited by

The standard electrode potentials of Zn, Ag and Cu are -0.76, 0.80 and 0.34 volt respectively, then:

The standard electrode potential of four metallic elements (A, B, C and D) are + 0.80, –0.76, + 0.12 and +0.34 V respectively. Arrange them in order of decreasing electropositive character

The standard electrode potential of four metallic elements (A, B, C and D) are + 0.80, –0.76, + 0.12 and +0.34 V respectively. Arrange them in order of decreasing electropositive character

The standard electrode potential values of the elements A, B and C are 0.68, -2.50 and -0.50 V respectively. The order of their reducing power is :