What is the primary purpose of using coke in the iron production process?

Understanding Carbon's Role in Iron Production

Interactive Video
•
Science, Chemistry, Physics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To add flavor to the iron
To remove impurities from the iron ore
To cool down the furnace
To provide a clean and hot fire for heating
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the furnace called a 'blast furnace'?
Due to the loud noise it makes
Because it blasts the iron ore into small pieces
Because it uses explosives to break down the ore
Because of the high-speed blast of hot air used
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the Bosch level in the blast furnace?
It is where impurities are removed
It is where the iron ore is loaded
It is where the molten iron is collected
It is where the hot air is introduced
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the oxygen in the iron ore at high temperatures?
It bonds with carbon to form carbon dioxide
It remains in the iron ore
It turns into water vapor
It is blasted away, leaving pure iron
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does carbon play in the formation of molten iron?
It makes the iron more brittle
It bonds with the iron to form a stronger metal
It helps in removing impurities
It cools down the iron
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to impurities like silica and sulfur during the extraction process?
They evaporate into the air
They dissolve in the molten iron
They rise to the top of the molten mixture
They sink to the bottom with the iron
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the extracted iron called 'pig iron'?
Because it is used to feed pigs
Because it is shaped like a pig
Due to its high carbon content
Because it was originally cast into molds resembling piglets
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