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Question
The process of converting hydrated alumina into anhydrous alumina is called
Options
Roasting
Calcination
Dressing
Smelting
MCQ
Solution
Calcination
Explanation:
Calcination causes hydrate ore to become anhydrous. Roasting is a process that involves rapidly heating sulphide ore in the presence of air. The ore is converted into oxide during the roasting process.
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