Phương trình phản ứng điều chế este:
A.Cn-1Hm-1COOH + C2H5OH \( \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over{\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} \) Cn-1Hm-1COOC2H5 + H2O
B.CnHmCOOH + C2H5OH \( \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over{\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} \) CnHmCOOC2H5 + H2O
C.CnHmCOOH + C2H5OH \( \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over{\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} \) CnHmOCOC2H5 + H2O.
D.Cn-1Hm-1COOH + C2H5OH \( \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over{\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} \) Cn-1HmCOOC2H5 + H2O.

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