The chemical formula for plaster of Paris is :(a) CaSO4. 2 H2O (b) CaSO4 . H2O(c) CaSO4. 1/2H2O (d) 2 CaSO4 . H2O
Correct Answer: (c) CaSO4.1/2H2O
Explanation:
The chemical formula for plaster of Paris (P.O.P) is hemihydrate Calcium Sulphate, CaSO4.1/2H2O
POP is used as decorative materials on walls, buildings, and sculptures.
It is used as a coating on wood and metal surfaces to act as fire-resistant and prevent them from burning.
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