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NEETChemistryGeneral Principles and Processes of Isolation of Metals

Which of the following statements correctly differentiates between 'roasting' and 'calcination' with examples?

Options

  1. ARoasting involves heating a substance in the presence of air, while calcination is a process that does not req
  2. BRoasting is primarily used for the extraction of metals, whereas calcination is used to drive off volatile sub
  3. CRoasting converts an ore into its oxide, while calcination is used to remove moisture and other volatile impur
  4. DRoasting is a process used in the preparation of cement, while calcination is employed in the extraction of zi

Correct answer

A. Roasting involves heating a substance in the presence of air, while calcination is a process that does not req

Step-by-step solution

Correct Option is : (A) Roasting involves heating a substance in the presence of air, while calcination is a process that does not require the presence of air.

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