CH3NO2←CH4→CH3Cl→CH2Cl2
1)CH4+Cl2 → CH3Cl+HCl
2)CH3Cl + Cl2 → CH2Cl2 + HCl
3)CH4 + HNO3 → CH3NO2 + H2O
CH3NO2←CH4→CH3Cl→CH2Cl2
1)CH4+Cl2 → CH3Cl+HCl
2)CH3Cl + Cl2 → CH2Cl2 + HCl
3)CH4 + HNO3 → CH3NO2 + H2O