Объяснение:
1. CH3 – CH3 + Cl2 →свет→ CH3 – CH2Cl + Cl
2. CH3-CH2-CH2-CH3(AlCl3,t)>CH3-CH(CH3)-CH3
3. CH3-CH(CH3)-CH3 + 6.5O2 = 4CO2 + 5H2O
