Give chemical equations:
(i) Ethylene into polythene
nC2H4 ethylene Polymerisation−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−→ 200-300 deg C, 1000 atm, O2 catalyst(C2H4)n Polythene
(ii) Ethyl alcohol into iodoform
C2H5OH Ethyl alcohol +4I2+6NaOH⟶CHI3 Iodoform +HCOONa+5NaI+5H2O