Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Carbon cannot reduce 
to 
at a temperature below 
because
A
free energy change for the formation of 
is more negative than that of 
is more negative than that of
B
is themodynamically more stable than 
C
carbon has higher affinity towards oxygen than iron
D
iron has higher affinity towards oxygen than carbon.
Text Solution
Verified by ExpertsThe correct answer is:
D
:
Below 
, conversion of iron to ferric oxide is more favourable. i.e., iron has higher affinity towards oxygen than carbon.
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