Cho dãy các chất: phenyl axetat, metyl axetat, etyl fomat, tripanmitin, vinyl axetat Số chất trong dãy khi thủy phân.

* Hướng dẫn giải

Chọn A.

Phenyl axetat

${\mathrm{CH}}_3{\mathrm{COOC}}_6{\mathrm{H}}_5+2\mathrm{NaOH}\to {\mathrm{CH}}_3\mathrm{COONa}+{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{ONa}+{\mathrm{H}}_2\mathrm{O}$

Metyl axetat

${\mathrm{CH}}_3{\mathrm{COOCH}}_3+\mathrm{NaOH}\to {\mathrm{CH}}_3\mathrm{COONa}+{\mathrm{CH}}_3\mathrm{OH}$

Etyl fomat

${\mathrm{HCOOC}}_2{\mathrm{H}}_5+\mathrm{NaOH}\to \mathrm{HCOONa}+{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}$

Tripanmitin

${\left({\mathrm{C}}_{15}{\mathrm{H}}_{31}\mathrm{COO}\right)}_3{\mathrm{C}}_3{\mathrm{H}}_5+3\mathrm{NaOH}\to 3{\mathrm{C}}_{15}{\mathrm{H}}_{31}\mathrm{COONa}+{\mathrm{C}}_3{\mathrm{H}}_5{\left(\mathrm{OH}\right)}_3$

Vinyl axetat

${\mathrm{CH}}_3\mathrm{COOCH}={\mathrm{CH}}_2+\mathrm{NaOH}\to {\mathrm{CH}}_3\mathrm{COONa}+{\mathrm{CH}}_3\mathrm{CHO}$