SELECT * FROM question_mgmt as q WHERE id=3234 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=9 AND chapterId=49 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 11th chemistry Redox Reactions using the standard electrode potentials given in t

Question:

Using the standard electrode potentials given in the Table 8.1, predict if the reaction between the following is feasible:

(a) Fe3+(aq) and I-(aq)

(b) Ag+(aq) and Cu(s)

(c) Fe3+ (aq) and Cu(s)

(d) Ag(s) and Fe3+(aq)

(e) Br2(aq) and Fe2+(aq)

Answer:

(a) The possible reaction between is given by, Fe3+(aq) +  I-(aq)

E° for the overall reaction is positive. Thus, the reaction between Fe3+(aq) and  I-(aq) is feasible.

 

(b) The possible reaction between is given by, Ag+(aq) + Cu(s)

E° positive for the overall reaction is positive. Hence, the reaction between Ag+(aq) and Cu(s) is feasible.

 

(c) The possible reaction between and is given by, Fe3+ (aq) +  Cu(s)

E° positive for the overall reaction is positive. Hence, the reaction between Fe3+ (aq)  and Cu(s) is feasible.

 

(d) The possible reaction betweenand is given by, Ag(s) + Fe3+(aq)

Here,E° for the overall reaction is negative. Hence, the reaction between Ag(s) and Fe3+(aq) is not feasible.

 

(e) The possible reaction betweenand is given by, Br2(aq)  +  Fe2+(aq)

Here, E° for the overall reaction is positive. Hence, the reaction between Br2(aq) and Fe2+(aq) is feasible.


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