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प्रश्न
State a peculiar (or remarkable) property of plaster of Paris.
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उत्तर
Plaster of Paris has the remarkable property of setting into a hard mass when moistened with water.
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संबंधित प्रश्न
Write an equation to show the reaction between plaster of Paris and water.
Name a calcium compound which hardens on wetting with water.
What is gypsum?
Name the compound which is used in hospitals for setting fractured bones.
What is plaster of Paris?
How is plaster of Paris prepared? Write a chemical equation of the reaction involved.
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.
For what purpose is it used in hospitals?
A white chemical compound becomes hard on mixing with proper quantity of water. It is also used in surgery to maintain joints in a fixed position. Name the chemical compound.
How are detergents manufactured?
At what temperature is gypsum heated to form Plaster of Paris?
How many water molecules does hydrated calcium sulphate contain?
______ is an important material in the construction industry.
______ is used in making blackboard chalks.
Match the Following:
| 1. | Antiseptic | a. | Plaster of paris |
| 2. | Making casts for statues | b. | Phenol |
| 3. | Ease stress and relaxes | c. | Gypsum |
| 4. | Fertilizers | d. | Epsum |
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.
