Превращения 1) CH4 - C - CH4 - CH3Br - x - CHBr3 - CBr4 2) C3H8 - C3H2Cl - C4H10 t, HCl3 - x
1)ch4=c+2H2 2)c+2H2=ch4 3)ch4+br2=ch3br+HBr 4)ch3br+br2=ch2br2+hbr 5)ch2br2+br2=chbr3+hbr 6)chbr3+br2=cbr4+hbr