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extraction of iron

Authored by yin hong

Chemistry

10th Grade

Used 140+ times

extraction of iron
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How to extract aluminium from its ore?

Electrolysis

Reduction by carbon

Oxidation

Redox reaction

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

What is the name of the iron ore?

magnetite

bauxite

haematite

cassiterite

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

in a hot blast furnace, the hot air is blown into the furnace from the .................

no hot air

middle

top

bottom

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Carbon is in the form of .......

coke

diamond

charcoal

graphite

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The raw materials for extraction of iron are........

iron ore, coke, limestone, carbon dioxide

iron ore, coke, limestone

iron ore, limestone

iron ore, coke, carbon monoxide

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the waste gas formed in the blast furnace?

carbon monoxide

nitrogen dioxide

carbon dioxide

nitrogen monoxide

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

"Oxygen from the hot air react with carbon to form carbon monoxide at the bottom of blast furnace."

Is this statement correct?

yes

no

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