pls ans
The process is Roasting.
Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/explain-with-example-calcination-and-roasting/metals-and-non-metals/2955692
Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/explain-with-example-calcination-and-roasting/metals-and-non-metals/2955692