Ответ: 1. H2C=C(H3C)-CH(H3C)-CH2-CH3+H2[t,p,Ni]= H3C-CH(H3C)-CH(H3C)-CH2-CH3. 2. H3C-CH=CH-CH3[t,кат.]= n[ -CH(H3C)-CH(H3C)-].