câu 1 hoàn thành các chuỗi phản ứng sau ghi gõ điều kiện nếu có
a) CH\(_4\) ---->C\(_2\)H\(_2\) ------>C\(_2\)H\(_4\)----->C\(_2\)H\(_6\)---->C\(_2\)H\(_5\)Cl
b) \(C_6H_6\)---->\(C_6H_5Br\)---->\(C_6H_5ONa\)----->\(C_6H_{_{ }5}OH\rightarrow\left(Br\right)_3C_6H_2OH\) c) \(CH_4\rightarrow CH_3Cl\rightarrow CH_3OH\rightarrow HCHO\rightarrow HCOOH\)
\(a) 2CH_4 \xrightarrow{t^o,lln} C_2H_2 + 3H_2\\ C_2H_2 + H_2 \xrightarrow{t^o,Pd} C_2H_4\\ C_2H_4 + H_2 \xrightarrow{t^o,Ni} C_2H_6\\ C_2H_6 + Cl_2 \xrightarrow{as} C_2H_5Cl + HCl\)
\(b)\\ C_6H_6 + Br_2 \xrightarrow{Fe,t^o}C_6H_5Br + HBr\\ C_6H_5Br + NaOH \to C_6H_5ONa + HBr\\ C_6H_5ONa + CO_2 + H_2O \to C_6H_5OH + NaHCO_3\\ C_6H_5OH + 3Br_2 \to C_6H_2OHBr_3 + 3HBr\)
\(c)\\ CH_4 + Cl_2 \xrightarrow{as} CH_3Cl + HCl \\ CH_3Cl + KOH \to CH_3OH + KCl\\ CH_3OH + CuO \xrightarrow{t^o} HCHO + Cu + H_2O\\ HCHO + \dfrac{1}{2}O_2 \xrightarrow{t^o,xt} HCOOH\)
