CH2=CH2 + H2= CH3-CH3 URMEAZA 6 REACTII DE SUBSTITUTIE prin care se inlocuiesc pe rand cei 6 atomi H, AJUNGANDU-SE LA CCL3-CCL3 , dar cred ca sunt 2 litere in plus
CH3-CH3 +cL2=CH3-CH2Cl +Hcl
CH3-CH2Cl+cL2= CH3-CHCl2 +HCL
CH3-CCl3
CH2Cl-CCL3
CHCl2-CCL3
CCl3-CCl3