Q14 / 150 · MHT CET 2020 (20 Oct Shift 1) · Chemistry

Which following compound acts as a flux in extraction of copper from copper pyrites

  • A
    $\mathrm{CaSiO}_{3}$
  • B
    $\mathrm{FeO}$
  • C
    $\mathrm{FeSiO}_{3}$
  • Correct answer
    D
    $\mathrm{SiO}_{2}$

Solution

Copper is extracted from the ore copper pyrite by smelting in a blast furnace. The flux used is $\mathrm{SiO}_{2}$ and slag formed is $\mathrm{FeSiO}_{3}$.

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

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