Select the correct statement when lower the position of a metal's line in the Ellingham diagram

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At the point of intersection the free energy change for redox reaction is zero involving metal oxide and metal from that two lines

The greater the gap between any two lines th greater the effectiveness of reducing properties corresponding to the lower line's metal

The intersection of two lines implies oxidation reduction equilibrium

The greater is the stability of it's oxide for example the line for Al (oxidation of Al) is found to be below that for Fe (formation of ${Fe}_{2} O_{3}$ )

answer is A, B, C, D.

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Detailed Solution

To ascertain circumstances such as the required temperature needed to decrease the ores of key metals, an Ellingham diagram is a commonly used tool in the field of extraction metallurgy. The graph shows the relationship between temperature and Gibbs’s free energy.

Therefore, all the options are correct

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