Between C and CO, Which is a better reducing agent for ZnO? – InterviewSolution

1.	Between C and CO, Which is a better reducing agent for ZnO?
Answer» Case-I : [Coke as reducing agent] `ZnO+CrarrZn+CO,DeltaG^(@)` becomes lesser as the T is more then 1120K. Case =II [CO as reducing agent] `ZnO+CO_(2)rarrZN+CO,DeltaG^(@)` becomes lesser when the T is more than 1323K. `rarr` The value of `DeltaG^(@)` is negative for a raction to occur. `rarr` In the equation (1) `DeltaG^(@)` becomes negative at low temperture-so equation (1) is feasible i.r. C is a better reducing agent for ZnO.s

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