Odpowiedź:
CH4 +Cl2--hv--> CH3Cl + HCl
CH3-CH3 +Br2 --hv--> CH3-CH2Br +HBr
CH2=CH2 +HCl--> CH3-CH2Cl
CH2=CH-CH3 +H2O--->CH3-CHOH-CH3
CH3-CH2-CH=CH-CH2-CH3+HBr--> CH3-CH2-CH2-CHBr-CH2-CH3
