Question

18.4#1

Consider the following half-reactions:

Half-reaction	E° (V)
Ag+(aq) + e----> Ag(s)	0.799V
Cd2+(aq) + 2e- ----> Cd(s)	-0.403V
Mg2+(aq) + 2e-  ---->  Mg(s)	-2.370V

The strongest oxidizing agent is:

___

The weakest oxidizing agent is:

___

The weakest reducing agent is:

___

The strongest reducing agent is:

___

Will Mg²⁺(aq) reduce Ag⁺(aq) to Ag(s)? _____(yes or no)

Which species can be reduced by Cd(s)? If none, leave box blank.

Answer 1

Strongest oxidising agent will have high reduction value

So, Ag ( silver )

Weakest oxidising agent will have low reduction value

Mg

Weakest reducing agent will low reduction value

Ag

Strongest reducing agent

Mg

2. Yes Mg will reduce Ag+ to Ag because it oxidation potential ( reverse of reduction potential ) is very high.

3.Ag is reduced by Cd because Ag has high reduction potential than the Cd.

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