\(etan\left(C_2H_6\right):\)không phản ứng với \(H_2,Br_2,AgNO_3\text{/}NH_3,HCl,H_2O\)
\(eten\left(C_2H_4\right):\)phản ứng với \(H_2,Br_2,HCl,H_2O\)
\(C_2H_4+H_2\xrightarrow[t^o]{Ni}C_2H_6\\ C_2H_4+Br_2\rightarrow C_2H_4Br_2\\ C_2H_4+HCl\rightarrow C_2H_5Cl\\ C_2H_4+H_2O\xrightarrow[H^+,\text{men rượu}]{t^o}C_2H_5OH\)
\(etin\left(C_2H_2\right):\)phản ứng với \(H_2,Br_2,AgNO_3\text{/}NH_3,HCl,H_2O\)
\(\left(1\right)C_2H_2+H_2\xrightarrow[t^o]{Pd\text{/}PdCO_3}C_2H_4\\ \left(2\right)C_2H_4+2H_2\xrightarrow[t^o]{Ni}C_2H_6\\ C_2H_2+2Br_2\rightarrow C_2H_2Br_4\\ C_2H_2+2AgNO_3+2NH_3\rightarrow C_2Ag_2\downarrow+2NH_4NO_3\)
\(C_2H_2+HCl\xrightarrow[HgCl_2]{t^o}C_2H_3Cl\)
\(C_2H_2+H_2O\xrightarrow[Hg^{2+}\text{/}H_2SO_4]{t^o}CH_3CHO\)