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CAIE IGCSE Chemistry 9.6.2 Iron Extraction From Hematite in a Questions

Work through real CAIE IGCSE Chemistry questions to explain blast-furnace reactions, limestone decomposition and impurity removal.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • identify hematite as the main iron ore used in the blast furnace
  • describe limestone thermal decomposition to lime and carbon dioxide
  • explain coke combustion, carbon monoxide reduction and iron formation
  • explain how limestone and lime remove silicon(IV) oxide impurities as slag

CAIE IGCSE Chemistry 9.6.2 Iron Extraction From Hematite in a Questions question 1

[Maximum number: 6]

This question is about metals.

Question (a)

(a)

Fig. 6.1 shows a blast furnace used to extract iron from its ore.

Fig. 6.1

Fig. 6.1

[ 6 ]

Question (i)

(i)

Coke and iron ore are added at the top of the blast furnace.

Name one other substance that is added at the top of the blast furnace.

[ 1 ]

Question (ii)

(ii)

Name the substance that leaves the blast furnace at A.

[ 1 ]

Question (iii)

(iii)

Slag is produced from an impurity in iron ore.

Name the impurity in iron ore that is converted into slag.

[ 1 ]

Question (iv)

(iv)

Name two substances that react together to produce the high temperature in the blast furnace. and

[ 1 ]

Question (v)

(v)

Name two waste gases that leave the blast furnace.

1

2

[ 2 ]
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