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Two allotropic forms of sulphur have sam...

Two allotropic forms of sulphur have same structure.
i. Identify the allotropes
ii. How they are prepared?

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i. Rhombic suiphur, Mónoclinic sulphur ii. Rhombic sulphur: It is prepared by slow evaporation of a solution of roll sulphur in carbon disulphide: Monoclinic sulphur: It is prepared by melting sulphur in a china dish and cooling till crust is formed. Two, holes are then pierced into the crust and the liquid below is taken but. On removing the crust, transparent needle like crystals of monoclinic sulphur are obtained.
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