Gypsum is

A

hydrated magnesium sulphate

B

anhydrous magnisium sulphate

C

hydrated calcium Sulphate

D

anhydrous calcium sulphate

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### Step-by-Step Solution 1. **Identify Gypsum**: Gypsum is a mineral that is commonly used in construction and agriculture. It is primarily known for its use in making plaster and drywall. 2. **Chemical Composition**: The chemical formula for gypsum is CaSO₄·2H₂O. This indicates that it is composed of calcium sulfate (CaSO₄) combined with two molecules of water (H₂O), making it a hydrated compound. 3. **Classification**: Gypsum is classified as a hydrated calcium sulfate. This means it contains water in its crystal structure, which is essential for its properties and uses. ...
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PEARSON IIT JEE FOUNDATION-SOME IMPORTANT ELEMENTS AND THEIR COMPOUNDS-Level-1
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