Question:
List the important sources of sulphur.

Answer:

Sulphur mainly exists in combined form in the earth's crust primarily as sulphates [gypsum (CaSO₄.2H₂O), Epsom salt (MgSO₄.7H₂O), baryte (BaSO₄)] and sulphides [(galena (PbS), zinc blends (ZnS), copper pyrites (CuFeS₂)].

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List the important sources of sulphur.

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Question: List the important sources of sulphur.

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Question:
List the important sources of sulphur.