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Question: Answered & Verified by Expert
Which of the following statements correctly differentiates between 'roasting' and 'calcination' with examples?
ChemistryGeneral Principles and Processes of Isolation of MetalsNEET
Options:
  • A Roasting involves heating a substance in the presence of air, while calcination is a process that does not require the presence of air.
  • B Roasting is primarily used for the extraction of metals, whereas calcination is used to drive off volatile substances.
  • C Roasting converts an ore into its oxide, while calcination is used to remove moisture and other volatile impurities.
  • D Roasting is a process used in the preparation of cement, while calcination is employed in the extraction of zinc.
Solution:
1202 Upvotes Verified Answer
The correct answer is: Roasting involves heating a substance in the presence of air, while calcination is a process that does not require the presence of air.
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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