1.

Which one of the following metals is extracted by a carbon reduction process ?

Answer»

Sodium
Iron
Aluminium
Magnesium

SOLUTION :The less ELECTROPOSITIVE METALS such as Fe,Zn,Sn etc. are extractedfrom their oxides by reduction with carbon or coal .
`Fe_(2)O_(3) +3C to 2Fe+3CO `
`Fe_(2)O_(3)+3CO to underset("Iron")(2Fe)+3CO_(2)`


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