Răspuns:
au loc reactii de aditie, cand alchenele se transforma in alcanii corespunzatori
CH3-CH=CH2+ H2---> CH3-CH2-CH3 propan
CH3-CH=CH-CH3+ H2---> CH3-CH2-CH2-CH3 butan
CH3-C(CH3)=CH2+H2--->-. > CH3-CH(CH3)-CH3 2metil propan
CH3-C(CH3)=CH-CH3+H2--->CH3-CH(CH3)-CH2-CH3 2 metil butan
Explicație: