A = alchena
d(N2) = miu.A/miu.N2
=> miu.A = d(N2)xmiu.N2 = 1,5x28 = 42 g/mol
14n = 42 => n = 3 => A = C3H6, propena
B = 1-bromopropan (obtinut prin aditie anti-Markovnikov in prezenta peroxizilor)
C = 1-propanol
D = acid propionic
E = 2-cloropropan
F = 2-propanol
G = propanona (acetona)
=> B.
