Iron ore which is grey to black in colour and is hard and magnetic, is known as

Related MCQs

• Which of the following operation on grey cast iron will result in the production of white cast iron?
• Which iron ore has least percentage of iron
• In grey cast iron, free graphite is in the form of
• In grey cast iron, carbon is present in the form of
• The flux used in blast furnace while melting iron ore is
• For each ton of pig iron produced in a blast furnace, the amount of ore used is approximately.
• Which allotropic form of iron is magnetic at room temperature?
• Which of the following form of iron is produced as a result of annealing of white cast iron?
• Which of the following material is added to cast iron to obtain nodular cast iron?
• Percentage of iron in pig iron approximately