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NTA Abhyas NEET2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

An ore after levigation is found to have acidic impurities. Which of the following can be used as flux during smelting operation?

Options

  1. AH 2 S O 4
  2. BC a C O 3
  3. CS i O 2
  4. DBoth B and C

Correct answer

B. C a C O 3

Step-by-step solution

C a C O 3 on heating gives CaO, which is basic in nature. It can react with acidic impurities to form slag.

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