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Match the following:

Ore Compounds
1. Cuprite a. Copper(I) sulfide
2. Chalcocite b. Copper carbonate hydroxide
3. Chalcopyrite  c. Copper(I) oxide
4. Malachite d. Copper iron sulfide

$\begin{array}{1 1} 1 \to d;\quad 2 \to a; \quad 3\to c; \quad 4 \to b \\1 \to c;\quad 2 \to a; \quad 3\to d; \quad 4 \to b \\ 1 \to b;\quad 2 \to d; \quad 3\to a; \quad 4 \to c \\ 1 \to d;\quad 2 \to c; \quad 3\to b; \quad 4 \to a \end{array}$

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Answer: $1 \to c;\quad 2 \to a; \quad 3\to d; \quad 4 \to b$
Factual Question about Copper Ores.
1. Cuprite is an oxide mineral composed of copper(I) oxide Cu$_2$O, and is a minor ore of copper.
2. Chalcocite, copper(I) sulfide (Cu$_2$S), is an important copper ore mineral. It is opaque, being colored dark-gray to black with a metallic luster
3. Chalcopyrite is a copper iron sulfide mineral that crystallizes in the tetragonal system. It has the chemical composition CuFeS$_2$.
4. Malachite is a copper carbonate hydroxide mineral, with the formula Cu$_2$CO$_3$(OH)$_2$. This opaque, green banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses
answered Jan 30, 2014 by sreemathi.v
edited Aug 7, 2014 by balaji.thirumalai
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