1) HC≡CH + 2[Ag(NH3)2]OH
=AgC≡CAg↓ + 4NH3↑ + 2H2O;
2) H2C=CH2 + Br2 = H2C(Br)-CH2(Br);
3a) CH4 + Cl2 = CH3Cl + HCl или
3b) CH4 + 4Cl2 = CCl4 + 4HCl;
4a) 2CH3Cl + 2Na = C2H6 + 2NaCl или
4b) CCl4 + 4Na = C + 4NaCl;
5a) C2H6 + 3.5O2 = 2CO2 + 3H2O или
5b) C + O2 = CO2.