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NTA Abhyas NEET2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

The pair that requires calcination is

Options

  1. AZ n C O 3 and CaO
  2. BF e 2 O 3 and C a C O 3 . M g C O 3
  3. CZnO and F e 2 O 3 . x H 2 O
  4. DAll of these

Correct answer

D. All of these

Step-by-step solution

Calcination is required for carbonate and hydrated oxide ores. So, here calcination is possible in all these.

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