The chemical process in the production of steel from haematite ore involves
Oxidation followed by reduction
In haematite, some FeO is also present alongwith Fe2O3. Thus, first of all this FeO is oxidised to Fe2O3 and after that the Fe2O3 gets reduced to Fe3O4 and then FeO and finally to Fe. Hence, in this process, first oxidation occurs and after that reduction takes place.
Lead is extracted from galena (PbS), either by following ways.
Auto-reduction process is
Which of the following process involves smelting?
FeCr2O4 (chromite) is a good source of chromium and its compounds like Na2CrO4 and Na2Cr2O7.
Consider (CuO) = –129.7 kJ mol–1, kJ mol –1and The better reducing agent for the reduction of CuO is
In which of the following isolations no reducting agent is required?
Which of the following pairs of oxides cannot be reduced by carbon to give the respective metals?
Titanium containing mineral found in our country is
Ore pitch blende is main source of