Which alkyl halide undergoes the {S}_{N}1 rea | vedclass

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(D) The rate of the ${S}_{N}1$ reaction depends on the stability of the carbocation formed and the ease with which the leaving group departs. In the r

Vedclass · Accepted Answer

$(CH_3)_3C - I$

Vedclass · Answer

(D) The rate of the ${S}_{N}1$ reaction depends on the stability of the carbocation formed and the ease with which the leaving group departs. In the rate-determining step of the ${S}_{N}1$ reaction,the carbon-halogen bond breaks. The ease of breaking this bond depends on the strength of the $C-X$ bond. The bond strength decreases as the size of the halogen atom increases $(F > Cl > Br > I)$. Therefore,the $C-I$ bond is the weakest and breaks most easily,making the iodide ion the best leaving group. Thus,$(CH_3)_3C - I$ reacts most rapidly.

Which alkyl halide undergoes the ${S}_{N}1$ reaction most rapidly?

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