Question

$\underset{\text{1-butanol}}{{CH_{3}(CH_{2})_{2}}} CH_{2}OH \xrightarrow{ NaBr,H_{2}SO_{4} }X$,
Identify X and the mechanism of the reaction

• A. $CH_{3} — CH_{2} —CH_{2}—CH_{2}—Br$ & $S_{N^{1}}$
• B. $CH_{3} — CH_{2} — CH_{2} — CH_{2} — Br$ & $S_{N^{2}}$
• C.
• D.

Answer 1

Answer: (B)

$CH_{3}-CH_{2}-Ch_{2}-CH_{2}-OH \xrightarrow[{S_{N^{2}}}]{{NaBr, H_{2}SO_{4}} }CH_{3}-CH_{2}-CH_{2}-CH_{2}-Br$
unbranched $1^{\circ}$ alcohol give $SN_{2}$ reaction with HX