Question

what do you mean by the reduction by carbon?​

Answer 1

oxidation and reduction :in chemical terms oxidation refers the loss of electrons . when we say carbon is oxidised what we mean is that the carbon atom in fuel loss electrons as they are converted into carbon dioxide. .

hope u UNDERSTAND. ..❤

Answer 2

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In this process, the roasted ore in the form of its oxide is mixed with carbon like coke and heated to a temperature above its melting point in a furnace when the oxides of the metal is reduced to the molten metal. Smelting is normally done for the extraction of metals like zinc, iron, lead and tin etc.

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$1.ZnO(s) + C(s) ----> Zn(s) + CO(g)$

$2.SnO_2(s) + C(s) ----> Sn(s) + 2CO(g)$

$3.PbO(s) + C(s) ----> Pb(s) + CO(g)$