The alloy steel used in ball bearings is

The molten metal withdrawn from the furnace is called

The constituent metals of bronze are

The corrosion resistance of steel is greatly improved by the addition of 

Iron produced at 750°C is in the solid state, it is porous and is known as

Bauxite is an ore of 

Haematite is an ore of iron which is chemically

  Extraction of the metals from their ores and preparation of alloys is called? 

The impurity present in the ores is 

Pitch blende is an ore of