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Match the following: List - I List - II i. Ore of Pb (Lead) a. Siderite ii. Ore of Fe (Iron) b. Galena iii. Ore of Cu (Copper) c. Philosopher's wool iv. Ore of Zn (Zinc) d. Malachite  

Match the following: List - I List - II i. Ore of Pb (Lead) a. Siderite ii. Ore of Fe (Iron) b. Galena iii. Ore of Cu (Copper) c. Philosopher's wool iv. Ore of Zn (Zinc) d. Malachite   Correct Answer i - b, ii - a, iii - d, iv - c

The correct answer is i - b, ii - a, iii - d, iv - c.

  • Siderite:
    • Siderite is a mineral composed of iron(II) carbonate (FeCO3).
      • Siderite is also called chalybite.
    • Siderite has been used as iron ore and for steel production.
    • Siderite forms as a sedimentary precipitate, in hydrothermal veins, in metamorphic rocks formed from such protoliths, and, rarely, in pegmatites.
    • Other major iron ores are hematite (Fe2O3), Magnetite (Fe3O4), Goethite / Limonite (HFeO2), Chamosite , Pyrite (FeS2), Ilmenite (FeTiO3).
  • Galena:
    • Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS).
    • It is the most important ore of lead and an important source of silver.
    • Galena is one of the most abundant and widely distributed sulfide minerals.
  • Philosopher's wool:
    • The compound zinc oxide (ZnO) is called philosopher's wool.
    • ZnO is a white powder that is insoluble in water.
  • Malachite (Cu2CO3(OH)2):
    • It is a green copper carbonate hydroxide mineral.
    • It was one of the first ores used to produce copper metal.
    • It is used to produce beads, sliced into inlay material, sculpted into ornamental objects, and used to manufacture tumbled stones.

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