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C

- Hướng dẫn giải

Đáp án C

$$\begin{gathered} {\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{COOC}}_6{\mathrm{H}}_5 + 2\mathrm{NaOH} \stackrel{\mathrm{t}°}{\to } {\mathrm{C}}_6{\mathrm{H}}_5\mathrm{COONa} \\ + {\mathrm{C}}_6{\mathrm{H}}_5\mathrm{ONa} + {\mathrm{H}}_2\mathrm{O} \end{gathered}$$

$$\begin{gathered} {\mathrm{CH}}_3\mathrm{COO}-{\left[{\mathrm{CH}}_2\right]}_2-{\mathrm{OOCCH}}_2{\mathrm{CH}}_3 +2\mathrm{NaOH} \\ \stackrel{\mathrm{t}°}{\to } {\mathrm{CH}}_3\mathrm{COONa} +{\mathrm{C}}_2{\mathrm{H}}_4{\left(\mathrm{OH}\right)}_2+{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{COONa} \end{gathered}$$

$$\begin{gathered} {\mathrm{CH}}_3\mathrm{OOC}-{\mathrm{COOCH}}_3 + 2\mathrm{NaOH} \stackrel{\mathrm{t}°}{\to } \\ \mathrm{NaOOC} – \mathrm{COONa} + 2{\mathrm{CH}}_3\mathrm{OH} \\ (\mathrm{chỉ} \mathrm{thu} 1 \mathrm{muối}) \end{gathered}$$

$$\begin{gathered} {\mathrm{CH}}_3{\mathrm{COOC}}_6{\mathrm{H}}_5 + 2\mathrm{NaOH} \stackrel{\mathrm{t}°}{\to } \\ {\mathrm{CH}}_3\mathrm{COONa}+{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{ONa} + {\mathrm{H}}_2\mathrm{O} \end{gathered}$$