Answer:
Since ore A giveson heating,
it must be a carbonate of moderately reactive metal like Zn. Hence, it will be
first subjected to calcination (to convert carbonate ore into metal oxide)
followed by reduction (to convert metal oxide to metal).
e.g., (calamine).
To convert it into metal treat
it with carbon.
Since, B gives, B must be
a sulphide ore, e.g.,,, , etc.
Hence it will be first subjected to roasting (to convert sulphide ore to metal
oxide) followed by reduction (to convert metal oxide to metal).
From these oxides metal is
obtained either by using reducing agent like C or by auto reduction.
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