CAIE IGCSE Chemistry 9.6 Extraction of Metals Topic Practice

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Covered syllabus points

9.6.1—Ease in obtaining metals from their9.6.2—Iron extraction from hematite in a9.6.3—Main ore of aluminium is bauxite and9.6.4—Symbol equations for the extraction of9.6.5—Aluminium extraction from purified

Question 1

[Maximum number: 7]

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 ]

Question (b)

(b)

Zinc is produced from zinc oxide in a furnace.

The zinc is produced as a gas. It then forms molten zinc.

[ 1 ]

Question (i)

(i)

Suggest why the zinc produced inside the furnace is a gas.

[ 1 ]

Question 2

[Maximum number: 1]

Which statement about the extraction of metals is correct?

A

Aluminium is extracted from the ore bauxite by electrolysis.

B

Aluminium is extracted from the ore hematite by electrolysis.

C

Iron is extracted from the ore bauxite by electrolysis.

D

Iron is extracted from the ore hematite by electrolysis.

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