CAIE IGCSE Chemistry Reactivity and Metal Extraction

Practise selecting extraction by carbon reduction or electrolysis from a metal's position relative to carbon and applying the method to named ores.

Exam points

use carbon reduction for metals below carbon when their oxide can be reduced economically
use electrolysis for metals above carbon because their compounds cannot be reduced by carbon
apply roasting and reduction equations to zinc ores and explain collection of zinc vapour

[Maximum number: 3]

Some elements are shown in the order they appear in the reactivity series. The most reactive element is at the top.
> sodium calcium magnesium aluminium zinc iron hydrogen copper

(a)

Name the main ores of:

[ 1 ]

(i)

zinc [1]

[ 1 ]

(b)

Name two metals from the list which are extracted by reduction of their ores using carbon.

1
2

[ 2 ]

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9.6.1—Ease in obtaining metals from their question 1

Question (a)

Question (i)

Question (b)