Setting of plaster of Paris is accompanied with___________________?
Correct answer: A. Hydration
- A. Hydration
- B. Dehydration
- C. Hydrolysis
- D. Loss of CO2
Explanation
Plaster of Paris, calcium sulfate hemihydrate, sets by reacting with water to form gypsum, calcium sulfate dihydrate. This is a hydration reaction, not dehydration or hydrolysis.
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