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Which of the following is not an ore of copper?

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Which of the following is not an ore of copper?

(a) Malachite

(b) Azurite

(c) Copper glance

(d) Galena

The question was asked in an internship interview.

My query is from Non-Ferrous Metals and Alloys in chapter Steel, Timber, Mortar, Plastics, Non-Ferrous Metals and Alloys of Construction & Building Materials

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The correct choice is (d) Galena

Easiest explanation: The principle ores of copper are copper glance, malachite, azurite, cuprite and copper pyrites. Copper is widely used for making electric cables, lighting conductors, household utensils, etc. Galena is an important ore of lead.

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