Question

Which of the following is not correct observation based on Ellingham diagram?

• A. A Metal can reduce the oxide of other metal which lies above in it Ellingham diagram.
• B. CO is more effective than C as a reducing agent below $710 ^ { \circ } \mathrm { C }$
• C. $\mathrm { CO } _ { 2 }$ hence oxidation of metal sulphides to oxides is not favorable.
• D. Need for conversion of metal sulphide to metal oxide before reduction can be explained thermodynamically.

Answer 1

Answer: (C)

$\mathrm { CO } _ { 2 }$ hence oxidation of metal sulphides to oxides is not favorable.

Answer 2

$\mathrm { CO } _ { 2 }$ hence oxidation of metal sulphide to metal oxide is favourable.