Write the correct sequence for the extraction of pure metals in the middle of the activity series from their carbonate ores?

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Detailed Solution

The correct sequence for the extraction of pure metals in the middle of the activity series from their carbonate ores is Carbonate ore, calcination, reduction of metal, and purification of metals.

(i) Crushing and pulverization

(ii) Concentration or dressing of the ore

(iii) Calcination or roasting of the ore (carbonate ores are changed into oxides by heating strongly in a limited supply of air)

(iv) Metal oxides are reduced to free metal

(v) Metal is purified and refined

These are all standard procedures in the extraction of metals from their ores.

Hence, the correct sequence for the extraction of pure metals in the middle of the activity series from their carbonate ores is carbonate ore, calcination, reduction of metal, purification of metals.

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