Q38.According to the following diagram, A reduces BO2 when the temperature is: (1) < 1400oC (2) > 1400oC (3) > 1200oC but < 1400oC (4) < 1200oC
What This Question Tests
This question requires interpreting an Ellingham diagram to determine the temperature range at which one element (A) can reduce the oxide of another element (B) based on Gibbs free energy changes.
Concepts Tested
📚 NCERT Sections This Tests
2.2 — Given The Standard Electrode Potentials,
Chemistry Class 11 · Chapter 2
2.2 Given the standard electrode potentials, K+/K = –2.93V, Ag+/Ag = 0.80V, Hg2+/Hg = 0.79V Mg2+/Mg = –2.37 V, Cr3+/Cr = – 0.74V Arrange these metals in their increasing order of reducing power.
5.16 — Draw Figure To Show The Splitting Of D Orbitals In An Octahedral Crystal Field.
Chemistry Class 11 · Chapter 5
5.16 Draw figure to show the splitting of d orbitals in an octahedral crystal field.
2.1 — Arrange The Following Metals In The Order In Which They Displace Each Other
Chemistry Class 11 · Chapter 2
2.1 Arrange the following metals in the order in which they displace each other from the solution of their salts. Al, Cu, Fe, Mg and Zn.
📋 Question Details
- Chapter
- Metallurgy
- Topic
- Ellingham Diagram
- Year
- 2020
- Shift
- 09 Jan Shift 1
- Q Number
- Q38
- Type
- Graph based
- NCERT Ref
- Class 12 Chemistry Ch 6: General Principles and Processes of Isolation of Elements
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