Give an example with the chemical equation for the reduction of ores using more reactive metals.

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Solution

Here is the examples:

$A l_{2} O_{3} + 6 N a \to 3 N a_{2} O + 2 A l$
where, $A l_{2} O_{3}$ is alumina

$F e_{2} O_{3} + A l \to A l_{2} O_{3} + F e + H e a t$
This reaction is also called thermit reaction and involves reduction of ferric oxide to ferrum (iron).

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A metal X which is resistant to corrosion is produced by the electrolysis of its molten oxide whereas another metal Y which is also resistant to corrosion is produced by the reduction of its oxide with carbon. Metal X can be used in powder form in thermite welding whereas metal Y is used in making cathodes of ordinary dry cells.
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Give an example with the chemical equation for the reduction of ores using more reactive metals.

Here is the examples:Al2O3+6Na→3Na2O+2Alwhere,Al2O3 is aluminaFe2O3+Al→Al2O3+Fe+HeatThis reaction is also called thermit reaction and involves reduction of ferric oxide to ferrum (iron).

Here is the examples:

$A l_{2} O_{3} + 6 N a \to 3 N a_{2} O + 2 A l$
where, $A l_{2} O_{3}$ is alumina

$F e_{2} O_{3} + A l \to A l_{2} O_{3} + F e + H e a t$
This reaction is also called thermit reaction and involves reduction of ferric oxide to ferrum (iron).