Answers

2015-08-30T13:42:33+05:30
On carefully heating of gypsum at 373K it looses water molecules partially to become calcium sulphate hemihydrate (CaSO4*1/2H2o). this is plaster of paris
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2015-08-30T13:43:22+05:30
Plaster of paris is a powder that forms a paste when mixed with water and then thickens and hardens.
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