makes the iron soft and easily machinable
increases hardness and brittleness
makes the iron white and hard
aids fusibility and fluidity
by adding magnesium to molten cast iron
by quick cooling of molten cast iron
from white cast iron by annealing process
none of the these
nickel
chromium
copper
magnesium
none of these
white cast iron
nodular cast iron
malleable cast iron
alloy cast iron
When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces alloy cast iron.