Cho sơ đồ sau: C4H10→X→Y→CH

B

- Hướng dẫn giải

Đáp án B

\({C_4}{H_{10}}\xrightarrow{{(1)}}{C_2}{H_4}\xrightarrow{{(2)}}{C_2}{H_5}OH\xrightarrow{{(3)}}C{H_3}COO{C_2}{H_5}\) \((1)\,\,{C_4}{H_{10}}{\text{ }}\xrightarrow{{cracking}}{\text{ }}{C_2}{H_4}{\text{ }} + {\text{ }}{C_2}{H_{6\;}}\) \((2)\,\,{C_2}{H_4} + {H_2}O\xrightarrow{{{H_2}S{O_4}\,{t^o}}}{C_2}{H_5}OH\) \((3)\,\,{C_2}{H_5}OH + C{H_3}COOH\overset {{H_2}S{O_4}} \leftrightarrows C{H_3}COO{C_2}{H_5} + {H_2}O\)