Extraction of Metals - Result Question 54
####54. Match the anionic species given in Column I that are present in the ore (s) given in Column II.
(2015 Adv.)
| Column I | Column II | ||
|---|---|---|---|
| A. | Carbonate | p. | Siderite |
| B. | Sulphide | q. | Malachite |
| C. | Hydroxide | r. | Bauxite |
| D. | Oxide | s. | Calamine |
| t. | Argentite |
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Solution:
- Siderite $=FeCO _3$, Malachite $=CuCO _3 \cdot Cu(OH) _2$
Bauxite $=Al _2 O _3 \cdot 2 H _2 O _2$ consisting some $Al(OH) _3$
Calamine $=ZnCO _3$, Argentite $=Ag _2 S$
