Assertion (A): Metals in the middle of activity series are found in nature as sulphides or carbonates. 1 Reason (R): The sulphide ores are calcinated whereas carbonate ores are roasted to extract metals from them.
Explanation
Assertion (A) is correct as metals in the middle of the activity series are found in nature as sulphides or carbonates. Reason (R) is also correct as sulphide ores are calcinated and carbonate ores are roasted to extract metals from them.
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