Question

Using the standard electrode potentials given in Table, predict if the reaction between the following is feasible: (i)Fe³⁺(aq) and I⁻(aq) (ii) Ag⁺(aq) and Cu(s) (iii) Fe³⁺ (aq) and Br⁻ (aq) (iv) Ag(s) and Fe³⁺ (aq) (v) Br₂ (aq) and Fe²⁺ (aq).

Answer 1

The answers are following-

(i) the reaction between Fe3+(aq) and I - (aq) is feasible.

(ii) As Eº for the overall reaction is positive, the reaction between Ag+(aq) and Cu(s) is feasible.

(iii) As Eº for the overall reaction is negative, the reaction between Fe3+(aq) and Br - (aq) is not feasible.

(iv) As Eº for the overall reaction is negative, the reaction between Ag(s) and Fe3+(aq) is not feasible.

(v) As for the overall reaction is positive, the reaction between Br2(aq) and Fe2+(aq) is feasible