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प्रश्न
How is plaster of Paris prepared? Write a chemical equation of the reaction involved.
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उत्तर
Plaster of Paris is prepared by heating gypsum (CaSO4.2H2O) to a temperature of 100°C (373 K) in a kiln. When gypsum is heated to 100°C (373 K), it loses three-fourths of its water of crystallisation and forms plaster of Paris.
\[\ce{\underset{Gypsum}{CaSO4 * 2H2O} ->[Heat to 100^\circ C][(373 K)] \underset{Plaster of Paris}{CaSO4 * 1/2 H2O} + \underset{Water}{1 1/2 H2O}}\]
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संबंधित प्रश्न
Write an equation to show the reaction between plaster of Paris and water.
What is the commercial name of calcium sulphate hemihydrate?
Name a calcium compound which hardens on wetting with water.
The chemical formula of plaster of Paris is ______.
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What is gypsum?
Which property of plaster of Paris is utilised in making casts for broken limbs in hospitals?
State two important uses of plaster of Paris.
Plaster of Paris is prepared by heating one of the following to a temperature of 100°C. This is:
A compound X which is prepared from gypsum has the property of hardening when mixed with a proper quantity of water.
Write the chemical equation for its preparation
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For what purpose is it used in hospitals?
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How many water molecules does hydrated calcium sulphate contain?
______ is an important material in the construction industry.
______ is used in making blackboard chalks.
Analogy:
______: Calcium Sulphate Dihydrate:: Plaster of Paris: Calcium Sulphate Hemihvdrate.
A compound which is prepared from gypsum has the property of hardening when mixed with water. identify the compound and write its formula. How is this compound prepared? Describe it in the form of a chemical equation only.
