1. а) Бутилен
CH2=CH-CH2-CH3 + H2 =(Ni,t)=> CH3-CH2-CH2-CH3
б) Этен
CH2=CH2 + H2 =(Ni,t)=> CH3-CH3
2. а) Натрия
2C2H5OH + 2Na = 2C2H5ONa + H2
д) Соляная к-та
C2H5OH + HCl = C2H5Cl + H2O
3. а) CH3OH
HCOOH + CH3OH = HCOOCH3 + H2O
с) Mg
2HCOOH + Mg = (HCOO)2Mg + H2