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The p-Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe p-Block Elements1 Mark
Question
List the important sources of sulphur.
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Answer

Sulphur mainly exists in combined form in the earth’s crust primarily as sulphates [gypsum $(CaSO_4.2H_2O),$ Epsom salt $(MgSO_4.7H_2O),$ baryte $(BaSO_4)]$ and sulphides [(galena (PbS), zinc blends (ZnS), copper pyrites $(CuFeS_2)].$

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