Extraction of Metals - Result Question 59

####60. Match the following metals listed in Column I with extraction processes listed in Column II.

(1979,2M)

Column I Column II
A. Silver p. Fused salt electrolysis
B. Calcium q. Carbon reduction
C. Zinc r. Carbon monoxide
reduction
D. Iron s. Amalgamation
E. Copper t. Self-reduction

Fill in the Blanks

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Solution:

  1. A. Silver is extracted by amalgamation process

Ag+HgAg(Hg) Amalgam  Distillation Ag(s)+Hg(v)

B. Calcium is extracted by electrolysis of fused CaCl2.

C. Zinc is extracted by carbon reduction method

ZnO+CZn+CO

D. Iron is extracted by both carbon reduction method and CO reduction methods

Fe2O3+3C2Fe+3CO Fe2O3+3CO2Fe+3CO2

E. Copper is extracted by self reduction methods

Cu2S+O2Cu2O+SO2 Cu2O+Cu2SCu+SO2



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