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प्रश्न
How many molecules of water of crystallisation (per formula unit) are present in:
Gypsum
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उत्तर
Gypsum (calcium sulphate crystals) contains two molecules of water of crystallisation in one formula unit. The chemical formula is CaSO4.2H2O (calcium sulphate dihydrate).
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संबंधित प्रश्न
Name a calcium compound which hardens on wetting with water.
The chemical formula of plaster of Paris is ______.
What will happen if heating is not controlled while preparing plaster of Paris?
What is gypsum?
Name the raw material used for the preparation of plaster of Paris.
What is plaster of Paris?
How is plaster of Paris prepared? Write a chemical equation of the reaction involved.
State two important uses of plaster of Paris.
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 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.
The chemical formula for plaster of Paris is:
How are detergents manufactured?
How many water molecules does hydrated calcium sulphate contain?
______ 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 |
