V2O5 + H2 = Cr2 O3 + Al = SnO2+ C= TiCl4+ Mg
V2O5 + 2 H2 → V2O3 + 2 H2O Cr2o3+2Al → 2Cr+Al2O3 SnO2+2C → Sn+2CO TiCl4+2Mg → Ti+2MgCl2