CH≡CH + H2→ CH≡CH + 2H2→ CH2 = CH2 + O2→ CH≡CH + Br2→ CH≡CH + 2Br2→ CH≡CH + H2→ CH2 = CH2 + H2→ CH≡CH + Cl2 → CH3 - CH3 + Cl2→
C2H2+H2=C2H4 C2H2+2H2=C2H6 C2H4+3O2=2CO2+2H2O C2H2+Br2=C2H2Br2 C2H2+2BR2=C2H2Br4 C2H2+H2=C2H4 C2H4+H2=C2H6 C2H2+Cl2=C2H2CL2 CH3-CH3+Cl2=C2H5Cl+HCL