6.
3С2H2-->C6H6 (над стрелкой: С акт,600°С)
С6H6+ HNO3---> C6H5NO2+H2O (H2SO4(к))
C6H5NO2+3H2--> С6H5NH2+ 2H2O (t,Pt)
С6H5NH2+ 3Br2--> C6H2Br3NH2+3HBr
8.
a) 2C2H4+O2--> 2CH3-COH (СuCl,PdCL2)
CH3-COH+ H2--> C2H5OH (t,Ni)
C2H5OH+O2--> CH3-COOH +H2O (t,Cu)
б) CaC2+H2O--> C2H2+Ca(OH)2
C2H2+ H2O--> CH3COH (Hg2+,H2SO4)
Ch3COH+Ag2O---> CH3COOH+ 2Ag (NH3,t)
6.
CH2=CH2+ H2O-->CH3-CH2-OH (H2SO4,t)
CH3-CH2-OH+ CuO--> CH3-COH+ H2O+ Cu (t)
Ch3COH+Ag2O---> CH3COOH+ 2Ag (NH3,t)
CH3COOH+ Br2--> CH2Br-COOH+HBr