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प्रश्न
Plaster of Paris should be stored in a moisture-proof container. Explain why?
उत्तर
The Plaster of Paris should be stored in a moisture-proof container, as it absorbs moisture and turns into hard substance (Gypsum) as shown in following chemical equation.
\[\ce{\underset{Plaster of Paris}{CaSO4. 1/2 H2O} + 3/2 H2O -> \underset{Gypsum}{CaSO4.}2H2O}\]
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.
Write an equation to show the reaction between Plaster of Paris and water.
What is the commercial name of calcium sulphate hemihydrate?
Plaster of Paris has a remarkable property of setting into a hard mass on addition of water.
What is gypsum? What happens when gypsum is heated to 100°C (373 K)?
Name the compound which is used in hospitals for setting fractured bones.
Name the raw material used for the preparation of plaster of Paris.
What is plaster of Paris? Write the chemical formula of plaster of Paris.
State two important use of plaster of Paris.
A compound X which is prepared from gypsum has the property of hardening when mixed with a proper quantity of water.
Identify the compound X
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
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.
Explain the uses of plaster of paris.
At what temperature is gypsum heated to form Plaster of Paris?
______ is used in making blackboard chalks.
Calcium sulphate hemihydrate is called as ______.
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.
