Câu 1:
$(1)2C{H_4}\xrightarrow[{}]{{{{1500}^o}}}{C_2}{H_2} + 3{H_2}$
$(2)3{C_2}{H_2}\xrightarrow[{{{600}^o}C}]{C}{C_6}{H_6}$
$(3){C_6}{H_6} + B{r_2}\xrightarrow[{{t^o}}]{{Fe}}{C_6}{H_5}Br + HBr$
Câu 2:
Bảng nhận biết:
PTHH:
$2{C_2}{H_5}OH + 2Na \to 2{C_2}{H_5}ONa + {H_2}$
${C_3}{H_5}{(OH)_3} + 3Na \to {C_3}{H_5}{(ONa)_3} + \dfrac{3}{2}{H_2}$
$\begin{gathered}
2{C_3}{H_5}{(OH)_3} + Cu{(OH)_2} \to {\left[ {{C_3}{H_5}{{(OH)}_2}O} \right]_2}Cu + 2{H_2}O \hfill \\
\end{gathered} $