Plaster of Paris is obtained by calcining A. Bauxite B. Gypsum C. Lime stone D. None of these

The correct answer is B. Gypsum.

Plaster of Paris is a white powder that is produced by heating gypsum to 120–180 °C. It is a hemihydrate of calcium sulfate, with the chemical formula CaSO4·½H2O. When mixed with water, it forms a paste that hardens over time. Plaster of Paris is used in a variety of applications, including construction, dentistry, and medicine.

Bauxite is an ore that is the main source of

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