Which one of these is most reactive ?

There is an overall 29-fold difference in reactivity of 1-chlorohexane,2-chlorohexane towards potassium iodide in acetone. Which one is the most reactive? Why?

There is an overall 29-fold difference in reactivity of 1-chlorohexane,2-chlorohexane towards potassium iodide in acetone. Which one is the most reactive? Why?

There is an overall 29-fold difference in reactivity of 1-chlorohexane,2-chlorohexane towards potassium iodide in acetone. Which one is the most reactive? Why?

From the electronic configurations Li (2, 1), Na (2, 8, 1) and K (2, 8, 8, 1), answer the following questions: Which one is the most reactive?

Which one is the most reactive -

Which one is the most reactive towards S_(N)1 reaction ?