Which of the following involves carbon reduction during extraction of metal from ore? (i) Bauxite – Al (ii) Copper pyrites – Cu (iii) Haematite – Fe (iv) Galena – Pb (v) Carnelite – Mg (vi) Sylvine –

Question

Which of the following involves carbon reduction during extraction of metal from ore?
(i) Bauxite – Al
(ii) Copper pyrites – Cu
(iii) Haematite – Fe
(iv) Galena – Pb
(v) Carnelite – Mg
(vi) Sylvine – K
(vii) Cassiterite – Sn
(viii) Zinc blende – Zn

Prashant Kotian · Accepted Answer

Correct answer: A. Haematite – Fe Galena – Pb Cassiterite – Sn Zinc blende – Zn Only these will involve carbon reduction.

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