In the isolation of metals, calcination process usually results in:
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- Metal oxide
- Metal carbonate
- Metal sulphide
- Metal hydroxide
The Correct Option is A
Solution and Explanation
It drives off volatile matter such as \(\mathrm{CO_2}\) and moisture: \(\mathrm{CaCO_3 \to CaO + CO_2}\), \(\mathrm{Al_2O_3\cdot 2H_2O \to Al_2O_3 + 2H_2O}\), \(\mathrm{ZnCO_3 \to ZnO + CO_2}\).
So the product is the metal oxide.
Answer: (1) Metal oxide
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