General Principles and Pr question bank (Chemistry)

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 $\mathrm{\Delta H}°$ vs $\mathrm{T}$ for formation of oxides of elements.

In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R

Assertion A: In the Ellingham diagram, a sharp change in slope of the line is observed from $\mathrm{Mg}\to \mathrm{MgO}$ at $~{1120}^{\mathrm{o}}\mathrm{C}$

Reason R: There is a large change of entropy associated with the change of state

In the light of the above statements, choose the correct answer from the options given below