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Question
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
Solution
Compound X is plaster of Paris, or calcium sulphate half hydrate (CaSO4.1/2H2O)
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RELATED QUESTIONS
Name a calcium compound which hardens on wetting with water.
Which property of plaster of Paris is utilised in making casts for broken limbs in hospitals?
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 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?
______ is an important material in the construction industry.
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.
