The correct statement regarding the given Ellingham diagram is :

Options

A. Coke cannot be used for the extraction of Cu from `Cu_(2)O`
B. At `1400^@C`, Al can be used for the extraction of Zn from ZnO
C. At `500^@C`, coke can be used for the extraction of Zn from ZnO
D. At `800^@C,` Cu can be used for the extraction of Zn from ZnO

Answer

B

Explanation

The metal whose curve lie below can reduce the metal oxide whose curve lie above in Ellingham diagram.