Lời giải của Tự Học 365

$C{H_4}\xrightarrow{{{{1500}^0}C}}{C_2}{H_2}\xrightarrow{{{H_2}O}}C{H_3}CHO\xrightarrow{{{H_2}}}{C_2}{H_5}OH\xrightarrow{{{O_2}}}C{H_3}COOH\xrightarrow{{{C_2}{H_2}}}C{H_3}COOCH{\text{ }} = {\text{ }}C{H_2}$

$C{H_4}\xrightarrow{{{{1500}^0}C;\,\,lam\,\,lanh\,\,nhanh}}{C_2}{H_2} + {H_2}$

${C_2}{H_2} + {H_2}O\xrightarrow{{HgS{O_4},{H_2}S{O_4}}}C{H_3}CHO$

$C{H_3}CHO + {H_2}\xrightarrow{{Ni\,{t^o}}}{C_2}{H_5}OH$

${C_2}{H_5}OH + {O_2}{\text{ }}\xrightarrow{{men}}{\text{ }}C{H_3}COOH{\text{ }} + {\text{ }}{H_2}O$

$C{H_3}COOH + {C_2}{H_2} \to C{H_3}COOCH{\text{ }} = {\text{ }}C{H_2}$

Đáp án cần chọn là: d