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प्रश्न
Name a calcium compound which hardens on wetting with water.
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उत्तर
Calcium sulphate hemihydrate (plaster of Paris)
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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.
Plaster of Paris should be stored in a moisture-proof container. Explain why?
What is the commercial name of calcium sulphate hemihydrate?
What will happen if heating is not controlled while preparing plaster of Paris?
State a peculiar (or remarkable) property of plaster of Paris.
What is gypsum?
Name the raw material used for the preparation of plaster of Paris.
State two important uses of plaster of Paris.
Plaster of Paris is prepared by heating one of the following to a temperature of 100°C. This is:
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.
- Write the chemical equation for its preparation.
- For what purpose is it used in hospitals?
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.
The chemical formula for plaster of Paris is:
How are detergents manufactured?
At what temperature is gypsum heated to form Plaster of Paris?
______ is used in making blackboard chalks.
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.
