Will the following Sₙ2 reaction proceed more rapidly in DMSO or H₂O?
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For each pair of compounds, state which compound is the better SN2 substrate.
c. 2-bromobutane or isopropyl bromide
d. 1-chloro-2,2-dimethylbutane or 2-chlorobutane
e. 1-iodobutane or 2-iodopropane