ICSE Class 10 Answered
Why cant the more electropositive metals be extracted by carbon reduction
Asked by lovemaan5500 | 05 Jan, 2018, 04:54: PM
Expert Answer
The electropositive metals are the alkali and alkaline earth metals such as sodium, potassium, magnesium, and calcium and also aluminium are highly reactive by nature.
And their affinity for the highly electronegative oxygen is significantly greater than that of carbon, which is also a non-metal.
So it is extremely difficult for carbon to displace a metal like magnesium and aluminium from the latter's oxide.
That is why these metals are usually isolated by electrolytic reduction of their chlorides or oxides
Answered by Ramandeep | 06 Jan, 2018, 03:37: PM
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