A) passing ethanol over heated alumina
B) heating sodium ethoxide with ethyl bromide.
C) treating ethyl alcohol with excess of \[{{H}_{2}}S{{O}_{4}}\] at 430-440 K
D) heating ethanol with dry \[A{{g}_{2}}O\]
Correct Answer: B
Solution :
\[\underset{Sodium\,\,ethoxide}{\mathop{C{{H}_{3}}C{{H}_{2}}ONa}}\,+\underset{\begin{smallmatrix} Bromo \\ ethane \end{smallmatrix}}{\mathop{{{C}_{2}}{{H}_{5}}Br}}\,\xrightarrow[synthesis]{Williamsons}\] \[\underset{Ethoxyethane}{\mathop{C{{H}_{3}}C{{H}_{2}}OC{{H}_{2}}C{{H}_{3}}}}\,+NaBr\]
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