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प्रश्न
State two important use of plaster of Paris.
उत्तर
Uses:
(i) Plaster of Paris is used in making decorative materials, toys, cosmetics, cheap ornaments, black-board chalks and casts for fractured bone and statues.
(ii) It is used in making surfaces such as walls of houses smooth before they are painted and for creating ornamental designs on the ceilings of houses and other buildings.
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संबंधित प्रश्न
Name the product obtained when Plaster of Paris is mixed with water. State the use of the product. Give two uses of POP.
What is the commercial name of calcium sulphate hemihydrate?
Name a calcium compound which hardens on wetting with water.
Plaster of Paris has a remarkable property of setting into a hard mass on addition of water.
Name the compound which is used in hospitals for setting fractured bones.
What is plaster of Paris? Write the chemical formula of plaster of Paris.
Plaster of Paris is prepared by heating one of the following to a temperature of 100°C. This is:
(a) CaSO3.2H2O
(b) CaCl2.2H2O
(c) CaCO3.2H2O
(d) CaSO4.2H2O
Explain the uses of plaster of paris.
How many water molecules does hydrated calcium sulphate contain?
Analogy:
______: Calcium Sulphate Dihydrate:: Plaster of Paris: Calcium Sulphate Hemihvdrate.
