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Name the product obtained when Plaster of Paris is mixed with water. State the use of the product. Give two uses of POP. - Science and Technology 1

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Name the product obtained when Plaster of Paris is mixed with water. State the use of the product. Give two uses of POP.

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Solution

The chemical formula of Plaster of Paris (POP) is CaSO4.½H2O. Gypsum (CaSO4.2H2O) is formed on mixing POP with water as follows:

CaSO4.½H2O + 1½ H2O → CaSO4.2H2O

Uses of POP:-

  • In hospitals, as plaster for supporting fractured bones in the right position.
  • For making decorative materials and for making wall surfaces smooth.
  • As a fire-proofing material.
Concept: Chemicals from Common Salt (Uses of Salt) - Preparation and Uses of Plaster of Paris
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