in which form carbon is present in white cast iron?

carbon impurity is present as cementite Fe3C in white cast iron.......hope u understand

Cast iron is not appreciably malleable at any temperature as cast. The carbon in cast irons may be present in the form of iron carbide or free graphite. White cast iron contains cementite (iron carbide) in which carbon is present in the combined form with iron and brittle

IRON CARBIDE(FE3C)