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प्लास्टर ऑफ पेरिस किसे कहते हैं |
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Answer» Plaster of Paris is made frome gypsum by heating it in a klin at 100 degree celsius.CaSo4.2 H2o----^----- CaSo4.1/2H2o+3/2H2o Calcium carbonate Calcium sulphate hemihydrate |
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