General Principles and Processes of Isolation of Elements — Chemistry STD 12 Science — Question
Gujarat BoardEnglish MediumSTD 12 ScienceChemistryGeneral Principles and Processes of Isolation of Elements1 Mark
MCQ
The better reducing agent at $7100^{\circ} \mathrm{C}$ is:
✓
$CO\ ($Ellingham diagram$)$
B
Coke
C
Both are equal
D
None of these
✓
Answer
Correct option: A.
$CO\ ($Ellingham diagram$)$
Ellingham diagram is a graph between $\triangle\text{G}^\circ$ and temperature values which determines the spontaneity of a reaction. At $7100^{\circ} \mathrm{C}, \mathrm{CO}$ acts as better reducing agent by seeing the diagram.
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