Q31 / 160 · AP EAMCET 2020 (18 Sep Shift 2) · Chemistry

Calamine, bauxite, malachite and siderite respectively are ores of .........

  • Correct answer
    A
    \(\mathrm{Zn}, \mathrm{Al}, \mathrm{Cu}, \mathrm{Fe}\)
  • B
    \(\mathrm{Cu}, \mathrm{Al}, \mathrm{Zn}, \mathrm{Fe}\)
  • C
    \(\mathrm{Zn}, \mathrm{Al}, \mathrm{Fe}, \mathrm{Cu}\)
  • D
    Al, \(\mathrm{Fe}, \mathrm{Zn}, \mathrm{Cu}\)

Solution

Calamine \(\mathrm{ZnCO}_3\) is the ore of \(\mathrm{Zn}\). Bauxite, \(\mathrm{AlO}_x(\mathrm{OH})_{3-2 x}\) is the ore of \(\mathrm{Al}\). (where, \(0 < x < 1\)) Malachite, \(\mathrm{CuCO}_3 \cdot \mathrm{Cu}(\mathrm{OH})_2\) is the ore of \(\mathrm{Cu}\). Siderite, \(\mathrm{FeCO}_3\) is the ore of \(\mathrm{Fe}\).

Hence, the correct answer is option: 'A'.

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