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Concentration of Ore

In the extrac...

Question

In the extraction of Iron, the function of limestone is as:

A

Reducing agent

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B

slag

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C

flux

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D

gangue

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Solution

The correct option is C
flux

$C a C O_{3} + S i O_{2} \to C a S i O_{3} + C O_{2} b a s i c g a n g u e s l a g f l u x$

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Q. In metallurgy of iron, limestone provides flux for removing impurities as slag.

Q. In metallurgy of iron, limestone provides flux and impurities for removing as slag.

In the manufacture of iron, limestone is added in the blast furnace to form
A,,gangue
B,,slag
C,,calcium metal
D,,calcium carbonate

Q. (a) In smelting process carried out in blast furnace for the exgtraction of iron, lower region of the furnace has the highest temperature.
(b) Formation of

C O

{C O}_{2}

and coke reduces the temperature of the middle region of blase furnace.
(c) Limestone is taken blast furnace as flux.
(d) Silica present in the ore as gangue is converted to fusible slag by the process of reduction
Which of the following regarding the process of smelting is correct?

Q. In the extraction of iron, limestone is added as:

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