Plaster of Paris is a compound of
calcium, sulphur, carbon and oxygen.
calcium, phosphorus and hydrogen.
hydrogen, sulphur and oxygen.
sulphur, calcium, oxygen and hydrogen.
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Plaster of paris, quick-setting gypsum plaster consisting of a fine white powder (calcium sulfate hemihydrate), which hardens when moistened and allowed to dry. Known since ancient times, plaster of paris is so called because of its preparation from the abundant gypsum found near Paris.
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calcium , phosphorus and hydrogen
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