Q.

The chemical name of "Plaster of Paris" commonly used for setting broken bones is –

A. Calcium nitrate
B. Calcium sulphate
C. Calcium carbonate
D. Calcium chloride
Answer» B. Calcium sulphate
Explanation: Plaster of Paris is the common name of Calcium Sulphate hemihydrate, with chemical formula: CaSO4.1/2H2O. Plaster of Paris is produced by heating gypsum to about 150°C.
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