Given below are two statements: Statement I: α and β forms of sulphur can change reversibly between themselves with slow heating or slow cooling. Statement II: At room temperature the stable crystalli

Question

Given below are two statements: Statement I: α and β forms of sulphur can change reversibly between themselves with slow heating or slow cooling. Statement II: At room temperature the stable crystalline form of sulphur is monoclinic sulphur. In the light of the above statements, choose the correct answer from the options given below

(A) Statement I is true but statement II is false
(B) Both Statement I and Statement II are true
(C) Both Statement I and Statement II are false
(D) Statement I is false but Statement II is true

Prashant Kotian · Accepted Answer

Sulphur forms numerous allotropes of which the yellow rhombic (α-sulphur) and monoclinic (β -sulphur) forms are the most important. The stable form at room temperature is rhombic sulphur, which transforms to monoclinic sulphur when heated above 369 K.

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