Q43.Ellingham diagram is a graphical representation of : (1) ΔG vs P (2) (ΔG −TΔS) vs T (3) ΔH vs T (4) ΔG vs T
What This Question Tests
This question tests the basic understanding of what an Ellingham diagram represents, which is the plot of Gibbs free energy change (ΔG) vs temperature (T).
Concepts Tested
📚 NCERT Sections This Tests
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.
2.6 — In The Button Cells Widely Used In Watches And Other Devices The Following
Chemistry Class 11 · Chapter 2
2.6 In the button cells widely used in watches and other devices the following reaction takes place: Zn(s) + Ag2O(s) + H2O(l) ® Zn2+(aq) + 2Ag(s) + 2OH–(aq) Determine DrGo and Eo for the reaction.
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.
📋 Question Details
- Chapter
- Metallurgy
- Topic
- Ellingham Diagram
- Year
- 2021
- Shift
- 25 Feb Shift 1
- Q Number
- Q43
- Type
- Conceptual
- NCERT Ref
- Class 12 Chemistry Ch 6: Metallurgy
More from this Chapter
Q62.Which of the following factors is of no significance for roasting sulphide ores to the oxides and not subjecting the sulphide ores to carbon reduction directly? JEE Main 2008 JEE Main Previous Year Paper (1) Metal sulphides are thermodynamically more (2) CO2 is thermodynamically more stable than CS2 stable than CS2 (3) Metal sulphides are less stable than the (4) CO2 is more volatile than CS2 corresponding oxides
Q41.Which of the oxide groups among the following cannot be reduced by carbon? (1) Cu2O, SnO2 (2) CaO, K2O (3) PbO, Fe2O4 (4) Fe2O3, ZnO
Q52.In the electrolysis of alumina to obtain aluminium metal, cryolite is added mainly to (1) lower the melting point of alumina (2) dissolve alumina in molten cryolite (3) remove the impurities of alumina (4) increase the electrical conductivity
Q52.Extraction of zinc from zinc blende is achieved by (1) roasting followed by self-reduction (2) electrolytic reduction (3) roasting followed by reduction with carbon (4) roasting followed by reduction with another metal