Ý $(8)$ không có bước chuyển phù hợp đề nghị đổi thành $C_2H_3O_2K$

$1.$ $ \rm C_2H_4+\dfrac{1}{2}O_2 \xrightarrow[t^o]{PdCl_2/CuCl} CH_3-CHO$

$2.$ $\rm HC \equiv CH+H_2O \xrightarrow[H^+,t^o]{HgSO_4} CH_3-CHO$

$3.$ $\rm CH_3CHO+H_2 \xrightarrow[t^o]{Ni} C_2H_5OH$

$4.$ $\rm C_2H_5OH+O_2 \xrightarrow[25-30^oC]{\text{Men giấm}}CH_3COOH+H_2O$

$5.$ $\rm CH_3COOH+C_2H_5OH \xrightarrow[t^o]{H_2SO_4(conc.)}CH_3COOC_2H_5+H_2O$

$6.$ $\rm CH_3-CHO+2AgNO_3+2NH_3+2H_2O \xrightarrow{t^o}CH_3COONH_4+2NH_4NO_3+2Ag$

$7.$ $\rm C_6H_{12}O_6 \xrightarrow[30-35^oC]{\text{enzim}} 2C_2H_5OH+2CO_2$

$8.$ $\rm CH_3CHO + 2 KMnO_4 + 3 KOH \to CH_3COOK + 2 K_2MnO_4 + 2 H_2O$

$9.$ $\rm C_4H_{10}+\dfrac{3}{2}O_2 \xrightarrow[t^o]{Mn^{2+}}2CH_3COOH+H_2O$