Extraction of Metals - Result Question 45
####45. The carbon-based reduction method is not used for the extraction of
(2013 Adv.)
(a) tin from
(b) iron from
(c) aluminium from
(d) magnesium from
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Solution:
- Al has greater affinity for oxygen, hence oxide is not reduced by carbon.
and (formed in the calcination from carbonates) are stable species and not reduced by carbon.
During Smelting