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JEE Main202228 Jun 2022Evening ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

In the metallurgical extraction of copper, following reaction is used : FeO + SiO 2 → FeSiO 3 FeO and FeSiO 3 respectively are.

Options

  1. Agangue and flux.
  2. Bflux and slag
  3. Cslag and flux.
  4. DGauge and slag

Correct answer

D. Gauge and slag

Step-by-step solution

During extraction of copper, iron oxide present as impurity is removed by adding SiO 2 and converting it into FeSiO 3 FeO + SiO 2 → FeSiO 3                     Flux                     Slag Hence, FeO is gangue and FeSiO 3 is slag.

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