Question

СO->CO2->CO->C5H12->C->CH4->CO2->CO->C10H22

Answer 1

1) CO+ H2O=CO2+H2
2) CO2+C= 2 CO
3) 50 CO + 6 H20 = 10 C5H12 + 25 O2 
4) C5H12 = 5 C + 6 H2
5) C + 4 H = CH4