Advertisements
Advertisements
प्रश्न
Name the raw material used for the preparation of plaster of Paris.
उत्तर
The raw material used for the preparation of plaster of Paris is gypsum (CaSO4.2H2O).
APPEARS IN
संबंधित प्रश्न
Plaster of Paris should be stored in a moisture-proof container. Explain why?
Plaster of Paris has a remarkable property of setting into a hard mass on addition of water.
Which property of plaster of Paris is utilised in making casts for broken limbs in hospitals?
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.
For what purpose is it used in hospitals?
How many water molecules does hydrated calcium sulphate contain?
______ 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:
Blackboard chalks: ______:: Plant growth: Epsum.
