Reactivity of haloalkane to SN1 reaction

[gxc9800]

Homework Statement

in my book, it states that the reactivity of haloalkane in ascending order is C6H5CH(CL)CH3 <CH3)3 CCL <C6H5(CH3)2 CL ...

this involve formation of carbocation as intermediate , so i the lesser the partial negative charge on C atom during formation of carbocation ,the more stable it is , and the more reactive towards SN1 reaction.

my ans is C6H5CH(CL)CH3 < C6H5(CH3)2 CL < CH3)3 CCL

Which is correct?

Homework Equations

The Attempt at a Solution

 

[Greg Bernhardt]

Thanks for the post! Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?