Calcination of gypsum produces__________________?
Correct answer: A. Plaster of Paris
- A. Plaster of Paris
- B. Salt cake
- C. Nitre cake
- D. Lime
Explanation
Controlled heating of gypsum, calcium sulfate dihydrate, removes part of its water of crystallisation and forms calcium sulfate hemihydrate. This product is plaster of Paris.
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