Question

What are the differences in the reactivity of `"bromoethane"`, and `"2-bromopentane"`?

Answer 1

Well, `"bromoethane"` should be more reactive for a reaction with a associative mechanism...........

Explanation:

And `"2-bromopentane"` should be more reactive in a dissociative scenario.

So bromoethane should be liable to undergo reaction with, say, `NaOH`, in an `S_N2` mechanism, to form ethyl alcohol and sodium bromide. Under the same conditions, `"2-bromopentane"` might be liable to undergo elimination to give `"2-pentylene"`.

The truth is I actually don't know.