Question

C-->CH4-->CH3Br--C2H6-->C2H5Cl-->C2H5OH-->CH3COH-->CH3COOH-->CH3COOCH3-->CH3COONa-->CH4
CH3Br-->CH3OH-->CH3OK

Answer 1

C2H6+HCL ----> C2H5CL + H2
C2H5CL+NaOH -------> C2H5OH + NaCL