При помощи каких реакций можно осуществить следующий цикл превращений:
а)CH4->CH3Cl->C2H6->C2H5Cl->C3H8
б)C->CH4->CH3Cl->C3H8->C3H7Br.
CH4+CL2--CH3CL+HCL
2CH3CL+2NA--C2H6+2NACL
C2H6+CL2--C2H5CL+HCL
C2H5CL+CH3CL+2NA--C3H8 +2NACL
C+2H2--CH4
CH3CL+C2H5CL+2NA--C3H8+2NACL
C3H8+BR2--C3H7BR+HBR
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CH4+CL2--CH3CL+HCL
2CH3CL+2NA--C2H6+2NACL
C2H6+CL2--C2H5CL+HCL
C2H5CL+CH3CL+2NA--C3H8 +2NACL
C+2H2--CH4
CH4+CL2--CH3CL+HCL
CH3CL+C2H5CL+2NA--C3H8+2NACL
C3H8+BR2--C3H7BR+HBR