ElectrochemistryHard
Question
Using the standard potential values given below, decide which of the statements I, II, III, IV are correct. Choose the right answer from (a), (b), (c) and (d)
Fe2+ + 2e- = Fe, Eo = - 0.44 V
Cu2+ + 2e- = Cu, Eo = + 0.34 V
Ag+ + e- = Ag, Eo = + 0.80 V
I. Copper can displace iron from FeSO4 solution
II. Iron can displace copper from CuSO4 solution
III. Silver can displace Cu from CuSO4 solution
IV. Iron can displace silver from AgNO3 solution
Fe2+ + 2e- = Fe, Eo = - 0.44 V
Cu2+ + 2e- = Cu, Eo = + 0.34 V
Ag+ + e- = Ag, Eo = + 0.80 V
I. Copper can displace iron from FeSO4 solution
II. Iron can displace copper from CuSO4 solution
III. Silver can displace Cu from CuSO4 solution
IV. Iron can displace silver from AgNO3 solution
Options
A.I and II
B.II and III
C.II and IV
D.I and IV
Solution
Lower standard reduction potential related metal ions can displace higher standard reduction potential related metal ions.
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