Which of the following redox couple is stronger reducing agent ?
a. `Li (E^0 = -3.05 V)` and `Mg (E^0= -2.36 V)`
b. `Zn (E^0 = -0.76 V)` and `Fe (E^0 = -0.44 V)`

Which of the following redox couple is stronger oxidizing agent ? a. Cl_2 (E^0 = 1.36 V) and Br_2 (E^0 = 1.09 V) b. MnO_4^Theta (E^0 = 1.51 V) and Cr_2O_7^(2Theta) (E^0 = 1.33 V)

Which of the following have d^0s^0 configuration Sc3+,Ti4+,V5+

The strongest oxidizing agent among the species In^(3+) (E^@ = -1.34V), Au^(3+) (E^@ = 1.4V) , Hg^(2+) (E^@=0.86V),Cr^(3+)(E^@=-0.74V) is

Consider the following redox reaction Mg_((s))+Sn_(aq)^(2+) rarr Mg_(aq)^(2+) +Sn_((s)) [Mg^(2+)] = 0.035M, [Sn^(2+)] = 0.025M , E_(Mg)^0 =- 2.37V and E_(Sn)^0 =-0.136V . Calculate DeltaG for the cell reaction.

Which species in each of the following pairs is better reducing agent under standard state conditions. E^@ values are, given. Give reasons for your answer :- Hg_(I) (0.86 V) or Ni_(s) (-0.23V)

Which species in each of the following pairs is better reducing agent under standard state conditions. E^@ values are, given. Give reasons for your answer :- K_(s) (-2.93 V) or Mg_(s) (-2.36)

Which species in each of the following pairs is better reducing agent under standard state conditions. E^@ values are, given. Give reasons for your answer :- Co_(aq)^(2+) (1.81 V) or In_(s) (-0.14 V)

Device galvanic cell for each of the following reactions and calculate DeltaG^@ for the reaction, (i) Zn dissolves in HCI to produce Zn^(2+) and H_2 gas. E_(Zn)^@ = -0.763V.(ii) Cr dissolves in diluteHCl to produce Cr^(3+) and H_2 gas. E_(Cr)^@ = -0.74 V .