A) ethyl chloride
B) acetyl chloride
C) cone. \[{{H}_{2}}S{{O}_{4}}\]
D) zinc dust
Correct Answer: B
Solution :
Acetic anhydride is prepared in the laboratory by heating sodium acetate with acetyl chloride. \[\underset{sodium\,\,acetate}{\mathop{C{{H}_{3}}COONa}}\,+\underset{\begin{smallmatrix} acetyle \\ chloride \end{smallmatrix}}{\mathop{C{{H}_{3}}COCl}}\,\xrightarrow{\Delta }\] \[\underset{acetic\,\,anhydride}{\mathop{C{{H}_{3}}COOCOC{{H}_{3}}}}\,\]
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