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JEE Main202313 Apr 2023Evening ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

Given below are two statements related to Ellingham diagram : Statement I : Ellingham diagrams can be constructed for formation of oxides, sulphides and halides of metals. Statement II : It consists of plots of ΔH ° vs T for formation of oxides of elements. In the light of the above statements, choose the most appropriate answer from the options given below :

Options

  1. ABoth Statement I and Statement II are correct
  2. BBoth Statement I and Statement II are incorrect
  3. CStatement I is correct but Statement II is incorrect
  4. DStatement I is incorrect but Statement II is correct

Correct answer

C. Statement I is correct but Statement II is incorrect

Step-by-step solution

An Ellingham diagram is a graph showing the temperature dependence of the stability of compounds. Ellingham diagrams can be drawn for Sulphides, Oxides and Halides. The Ellingham diagram is a graph that shows how the ΔG f 0 varies with temperature as a result of the formation of elemental oxides.

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