What types of ores are roasted?
Sulphide ores are roasted.
Why does carbon reduce copper oxide but not calcium oxide?
What is pig iron? What is its composition?
How is the cast iron obtained?
What are the chief ores of iron?
Carbon is a cheaper reducing agent than aluminium. Why is then aluminium used for reduction in some cases?
Which metal is refined by Van Arkel Method?
What is wrought iron?
Why is the formation of sulphate in calcination sometimes advantageous?
What is composition of cast iron?