From the two allotropes of sulphur, Rhombic sulphur and Monoclinic sulphur, which is more stable?
Both are equally stable
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Rhombic sulphur or α sulphur is yellow solid consisting of S8 puckered rings. The thermodynamically stable form at ordinary temperatures. Monoclinic sulphur is a yellow crystalline solid, consisting of S8 puckered rings. Only stable above 95.6oC, it reverts to α-sulphur at room temperature.