Consider the reaction: \[ \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{Br}+\mathrm{Na...

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Consider the reaction:
\[
\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{Br}+\mathrm{NaCN} \longrightarrow \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CN}
\]
\( +\mathrm{NaBr} \)
This reaction will be the fastest in :
(A) water
(B) ethanol
(C) methanol
(D) \( N, N^{\prime} \)-dimethylformamide (DMF)
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