[MaximumCupcakes]

Here are the voltammograms for a compound (let's call it X) in three different solvents.
http://i40.tinypic.com/x9lqd.jpg

These are the mechanisms I have proposed for each, so I'd really appreciate it if anyone can tell me where I'm going wrong. This is for an introductory level class but I'm still having a difficult time understanding how to propose mechanisms.

a) CH₂Cl₂
forward:
X + e^- ---> X^-
X^- + CH₂Cl₂ ---> CH₂Cl-X + Cl^-

back:
CH₂Cl-X + e^- ---> [CH₂Cl-X ]^-


b) THF
forward:
X + e^- ---> X^-
X^- + e^- ---> X^2-

back:
X^2- ---> X^- + e^-
X^- ---> X + e^-

c) THF + CH₃I
forward:
X + e^- ---> X^-
X^- +  CH₃I --->  CH₃X + I^-

back:
CH₃X + e^- ---> [CH₃X]^-

Any comments / suggestions are very much appreciated, and thank you!

[MERCK86]

please explain your question a bit more.
 you can't understand the peaks or the the mechanism?