Question:
The correct option(s) related to the extraction of iron from its ore in the blast furnace operating in the temperature range $900-1500 K$ is(are)
The correct option(s) related to the extraction of iron from its ore in the blast furnace operating in the temperature range $900-1500 K$ is(are)
Updated On: Apr 23, 2024
- Limestone is used to remove silicate impurity.
- Pig iron obtained from blast furnace contains about $4 \%$ carbon.
- Coke (C) converts $CO _2$ to $CO$.
- Exhaust gases consist of $NO _2$ and $CO$.
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The Correct Option is A, B, C
Solution and Explanation
The correct options are (A), (B) and (C).
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Concepts Used:
General Principles and Processes of Isolation of Elements
What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal