1 câu trả lời
$A: CH_3CHO$
$B: C_2H_5OH$
$D: CH_3COOH$
PTHH:
$C_2H_2+H_2O\xrightarrow{{ HgSO_4, H_2SO_4, t^o}} CH_3CHO$
$CH_3CHO+H_2\xrightarrow{{Ni, t^o}} C_2H_5OH$
$C_2H_5OH+O_2\xrightarrow{{\text{men giấm}}} CH_3COOH+H_2O$
$CH_3COOH+C_2H_5OH\buildrel{{H_2SO_4 đ, t^o}}\over\rightleftharpoons CH_3COOC_2H_5+H_2O$
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