Advertisements
Advertisements
प्रश्न
Name the product obtained when Plaster of Paris is mixed with water. State the use of the product. Give two uses of POP.
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.
APPEARS IN
संबंधित प्रश्न
Write an equation to show the reaction between Plaster of Paris and water.
Plaster of Paris should be stored in a moisture-proof container. Explain why?
Name a calcium compound which hardens on wetting with water.
Fill in the following blank:
The chemical formula of plaster of Paris is ............
What will happen if heating is not controlled while preparing plaster of Paris?
What is gypsum? What happens when gypsum is heated to 100°C (373 K)?
Which property of plaster of Paris is utilised in making casts for broken limbs in hospitals?
What is plaster of Paris? Write the chemical formula of plaster of Paris.
How is plaster of Parish prepared? Write 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) CaSO3.2H2O
(b) CaCl2.2H2O
(c) CaCO3.2H2O
(d) CaSO4.2H2O
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?
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 many molecules of water of crystallisation (per formula unit) are present in:
gypsum?
Explain the uses of plaster of paris.
How many water molecules does hydrated calcium sulphate contain?
______ is an important material in the construction industry.
Calcium sulphate hemihydrate is called as ______.
