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प्रश्न
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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उत्तर
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.
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संबंधित प्रश्न
Plaster of Paris should be stored in a moisture-proof container. Explain why?
What is the commercial name of calcium sulphate hemihydrate?
Name a calcium compound which hardens on wetting with water.
What is gypsum? What happens when gypsum is heated to 100°C (373 K)?
Name the raw material used for the preparation 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
Consider the following substances:
NaCl, Ca(OH)2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2
Which compound represents plaster of Paris?
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 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?
The chemical formula for plaster of Paris is:
How are detergents manufactured?
______ is an important material in the construction industry.
______ 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 |
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.
