Question

The correct statement regarding the given Ellingham diagram is
(A) At 1400oC, Al can be used for the extraction of Zn from ZnO
(B) At 500oC, coke can be used for the extraction of Zn from ZnO
(C) Coke cannot be used for the extraction of Cu from Cu₂O
(D) At 800oC Cu can be used for the extraction of Zn from ZnO

Answer 1

YOUR ANSWER IS IN THE ATTACHMENT PLZZ REFER TO THE ATTACHMENT

Answer 2

The correct statement regarding the given Ellingham diagram is the one in option A ( At 1400°C, Al can be used for the extraction of Zn from ZnO).

• Ellingham diagram is a graphical representation of the variation of Gibb's free energy for the formation of various oxides with change in temperature.
• A general rule of thumb for the Ellingham diagram is that the element whose graph is below the graph of an oxide at a given temperature can be used to reduce the given oxide to its elemental form at that given temperature.
• Using the following details, we can verify that only statement one is correct.