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  4. The Ellingham diagram for a number of metallic sulphides is reproduced below <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/chemistry/29cd55623f2e588a5c822c98f8a379b1-.png /> Answer the questions given Formation of which of the sulphides is most spontaneous?

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Q. The Ellingham diagram for a number of metallic sulphides is reproduced below
image
Answer the questions given
Formation of which of the sulphides is most spontaneous?

General Principles and Processes of Isolation of Elements

Solution:

Correct answer is (c) $PbS$