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in General Principle and Processes of Isolation of Elements by (33.4k points)
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Blast furnace produces molten iron which contains impurities such as carbon and sulphur. To make steel, oxygen is blown into the surface of the molten iron. Other elements are then added to give the type of steel required.

1. What is slag?

2. Name the two gases formed when oxygen reacts with the impurities.

3. Name one element which is added to iron to make steel.

1 Answer

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1. Slag is a substance formed by the reaction of impurities with flux.

2. Carbon dioxide and Sulphur dioxide.

3. Carbon.

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