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Metallurgical Engineering · Q39

Extractive Metallurgy

Engineering and GATE · Metallurgical Engineering · question 39

Q39

Aluminium is not commercially produced by carbon-thermic reduction primarily, because

A.
aluminium metal will have excessive dissolved oxygen
B.
it melts at too Iow a temperature
C.
it does not vaporise at reasonable temperature
D.
Al-Al2O3 Iine is too low in the Ellingham diagram and needs excessively high temperature
Answer

Answer: Option D

Solution

Answer: Option D
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