General Principles and Processes of Isolation of Elements - Result Question 7

####7. Considering Ellingham diagram, which of the following metals can be used to reduce alumina?

[2018]

(a) Fe

(c) Zn

(c) Cu

(d) Mg

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Solution:

  1. (d) Mg has more ΔG value than alumina. So it will be in the lower part of Ellingham diagram. Metals which have more ΔG value can reduce those metal oxides which have less ΔG value.


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