C2H5->X1->C2H5Br ↓ t↓+Na CO2 X2

Question

C2H5->X1->C2H5Br
↓ t↓+Na
CO2 X2

Answer 1

C2H6 -> C2H4 + H2
C2H4 + HCl -> C2H5Cl
2C2H5Cl +2Na -> C4H10 + 2NaCl
2C2H6 + 7O2 -> 4CO2 +6H2O