Q46 / 160 · JIPMER 2012 · Chemistry

Acetic anhydride is prepared in the laboratory by heating sodium acetate with

  • A
    ethyl chloride
  • Correct answer
    B
    acetyl chloride
  • C
    conc. $\mathrm{H}_2 \mathrm{SO}_4$
  • D
    zinc dust

Solution

In laboratory, acetic anhydride is prepared by heating sodium acetate with acetyl chloride. $\mathrm{CH}_3 \mathrm{COONa}+\underset{\text { acetyl chloride }}{\mathrm{CH}_3 \mathrm{COCl}} \xrightarrow[-\mathrm{NaCl}]{\Delta} \underset{\text { acetic anhydride }}{\mathrm{CH}_3 \mathrm{COOCOCH}_3}$

Hence, the correct answer is option: 'B'.

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