Extraction of Metals - Result Question 13
####13. Match the ores ( Column A ) with the metals (Column B).
| Column A | Column B | ||
|---|---|---|---|
| Ores | Metals | ||
| A. | Siderite | P. | Zinc |
| B. | Kaolinite | Q. | Copper |
| C. | Malachite | R. | Iron |
| D. | Calamine | S. | Aluminium |
(2019 Main, 11 Jan I)
Extraction of Metals 263
(a) A - P; B- Q; C - R; D- S
(b) A - R; B- S; C - P; D- Q
(c) A - Q; B- R; C - S; D- P
(d) A - R; B- S; C - Q; D- P
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Solution:
- The correct match is: $A \rightarrow R ; B \rightarrow S ; C \rightarrow Q ; D \rightarrow P$.
(A) Siderite is an ore of iron with molecular formula $FeCO _3(R)$.
(B) Kaolinite is an ore of aluminium with molecular formula $Al _2 Si _2(OH) _2 O _5(S)$.
(C) Malachite is an ore of copper with molecular formula $CuCO _3 \cdot Cu(OH) _2(Q)$.
(D) Calamine is an ore of zinc with molecular formula $ZnCO _3(P)$.
