Formation of which of the sulphides is most spontaneous?

CHEMISTRY · Single correct · CBSE · Chemistry · Metals and Non-metals · Metals and Non-metals

Problem

Formation of which of the sulphides is most spontaneous? (1) HgS (2) Bi2S3\text{Bi}_2\text{S}_3 (3) PbS (4) CS2\text{CS}_2

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