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NEET
Exam
NEET
Subject
Chemistry
Chapter
General Principles and Processes of Isolation of Metals

NEET · Chemistry · General Principles and Processes of Isolation of Metals

Which of the following statements correctly differentiates between...

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 require the presence of air.
  2. BRoasting is primarily used for the extraction of metals, whereas calcination is used to drive off volatile substances.
  3. CRoasting converts an ore into its oxide, while calcination is used to remove moisture and other volatile impurities.
  4. DRoasting is a process used in the preparation of cement, while calcination is employed in the extraction of zinc.

Correct answer

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

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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