Răspuns:
Explicație:
1) propena ,alchena
etan, alcan
2 butena, alchena
metan ,alcan
2) CH2=CH2+H2=CH3-CH3
CH2=CH-CH3+HCl=CH3-CHCl-CH3
CH3-CH=CH-CH3+HCl=CH3-CH2-CHCl-CH3
CH4+Cl2=CH3-Cl +HCl