Name one metal each which is extracted by:

(a) reduction with carbon.


(b) electrolytic reduction.


(c) reduction with aluminium


(d) reduction with heat alone.

(a) Zinc is extracted by reduction with carbon.

(b) Sodium is extracted by electrolytic reduction.


(c) Manganese is extracted by reduction with aluminium


(d) Mercury is extracted by reduction with heat alone.


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