Multiple Choice
Given:
Zn2+(aq) + 2e- Zn(s) ; E° = -0.76 V
Cr3+(aq) + 3e- Cr(s) ; E° = -0.74 V
Fe2+(aq) + 2e- Fe(s) ; E° = -0.41 V
Cd2+(aq) + 2e- Cd(s) ; E° = -0.40 V
Sn2+(aq) + 2e- Sn(s) ; E° = -0.15 V
Hg2+(aq) + 2e- Hg(s) ; E° = 0.85 V
Au+(aq) + e- Au(s) ; E° = 1.69 V
Under standard-state conditions,which of the following metals will reduce Hg2+ to Hg but will not reduce Cd2+ to Cd?
A) Cr
B) Zn
C) Fe
D) Sn
E) Au
Correct Answer:

Verified
Correct Answer:
Verified
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