The diagram shows a blast furnace used to extract iron, a transition element, from its ores by chemical reduction - Leaving Cert Chemistry - Question Question 1 - 2021
Question Question 1
The diagram shows a blast furnace used to extract iron, a transition element, from its ores by chemical reduction.
The charge, a mixture of iron ore, limestone and a... show full transcript
Worked Solution & Example Answer:The diagram shows a blast furnace used to extract iron, a transition element, from its ores by chemical reduction - Leaving Cert Chemistry - Question Question 1 - 2021
Step 1
Give one general property of transition elements.
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Answer
Transition elements typically exhibit variable oxidation states, allowing them to form a variety of compounds.
Step 2
Identify X added in the charge to bring about the reduction of the iron ore and to act as a fuel for the furnace.
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The substance X that is added in the charge is usually carbon, commonly in the form of coke.
Step 3
What name is usually given to Y? Give a use for Y.
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Y is commonly referred to as 'slag'. Slag is often used in road construction and as a material in cement production.
Step 4
Identify the main impurity in the pig iron whose concentration is reduced during steel making.
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Answer
The main impurity in pig iron that is reduced during steel making is sulfur.
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