Published by:
CGP EDU Academic Team
Published on: August 13, 2026
From the Ellingham graph between Gibb’s energy and temperature out of C and CO which is a better reducing agent for ZnO?
Text Solution
Verified by ExpertsThe correct answer is:
A
: The free energy of formation 
of CO from C becomes lower at temperatures above 1180 K whereas that of 
from C becomes lower above 
than 
of ZnO. However 
of 
from COis always higher than that of ZnO. Hence, C can reduce ZnO to Zn but not CO.
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