Extraction of iron

IMPORTANT

Extraction of iron: Overview

This Topic covers sub-topics such as Blast Furnace, Extraction of Iron, Gangue or Matrix and, Slag Formation

Important Questions on Extraction of iron

HARD
IMPORTANT

The reaction that does NOT takes place in blast furnace between 900K and 1500K temperature range during the extraction of iron is: 

HARD
IMPORTANT

Name two important ores of Iron. Write the method of extraction of iron and the chemical reaction involved it ?

HARD
IMPORTANT

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)

MEDIUM
IMPORTANT

Which of the following reactions take place in the blast furnace during extraction of iron is endothermic?

MEDIUM
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Iron articles usually rust within a few years. But since 400 A.D. the Delhi iron pillar Near Kutab Minar is existing without any rust or sign of decay. Explain how?

EASY
IMPORTANT

Ore dressing of iron ore is done by

EASY
IMPORTANT

Name the chief form of occurrence of the following in the earth's crust iron.

MEDIUM
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Write equation for the formation of slag in the extraction of copper.

MEDIUM
IMPORTANT

Describe the role of limestone in the metallurgy of iron.

EASY
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Describe the principle controlling the preparation of cast iron from pig iron.

HARD
IMPORTANT

Describe how the following changes are brought about:

Pig iron into steel.

HARD
IMPORTANT

Draw a neat diagram of blast furnace for the extraction of iron from haematite. Write the reactions taking place in slag formation zone of the furnace mentioning the respective temperatures.

HARD
IMPORTANT

Draw a neat diagram of blast furnace for the extraction of iron from haematite. Write the reactions taking place in reduction zone.

EASY
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What is the principle of thermite process? Name two metals which can be extracted with the help of this process.

EASY
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How is wrought iron different from steel?

EASY
IMPORTANT

What is the role of limestone in the extraction of iron from its oxides?

EASY
IMPORTANT

What is flux? What is the role of flux in the metallurgy of iron and copper? or What is flux? Name an acid flux.

HARD
IMPORTANT

Write down the chemical reaction taking place in different zones in the blast furnace during extraction of iron.

EASY
IMPORTANT

Which form of the iron is the purest form of commercial iron ?

EASY
IMPORTANT

Write a non-exothermic reaction taking place in the blast furnace during extraction of iron.