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Extraction of Aluminium

Iron is extra...

Question

Iron is extracted from hematite in the blast furnace.
The hematite contains silicon (IV) oxide (sand) as an impurity
What reacts with this impurity to remove it?

A

calcium oxide

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B

carbon

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C

carbon dioxide

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D

slag

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Solution

The correct option is B calcium oxide
$Calcium oxide is used to remove silicon impurity in iron extraction. It forms slag.$

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Q. The following questions refer to the extraction of aluminium and iron from their ores:
(a) Name the principle ore from which (i) iron, and (ii) aluminium are extracted.
(b) What is the most important chemical process in the extraction of any metal? State how this essential step is carried out in the extraction of: (i) iron, (ii) aluminium.
(c) Iron and aluminium ores both, contain impurities. Explain, briefly how these impurities are removed in each case.
(d) What is the major impurity present in iron when it is removed from the furnace?
Name an alloy of zinc is used in simple voltaic cells.

how is iron extracted from hematite , in a blast furnace ?

Which of the following act as a reducing agent in the reduction zone of blast furnace during the extraction of iron from hematite?

Q. What is the actual reducing agent of hematite in blast furnace?

Q. Which of the following is correct regarding the reduction of hematite ore in a blast furnace?

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