Question
Download Solution PDFChemical formula of gypsum is ________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is CaSO4.2H2O.
Key Points
Gypsum is an ore of Calcium (Ca). The chemical formula of Gypsum is CaSO4.2H2O
- Gypsum is mainly used as a fertilizer, as the main constituent in plaster, chalk, etc.
- Rapid setting of cement is the function of gypsum in cement.
- It is a crystalline mineral composed of calcium sulfate dihydrate.
- Gypsum helps in controlling the rate of hardening of the cement.
- It also prevents early hardening allowing long working time, hence we can say that it helps in the rapid setting of cement.
- The Bikaner district of Rajasthan has the maximum quantity of Gypsum.
- Rajasthan produces 90% of total production in India.
Additional Information
Some common chemical compounds with their common names are:
|
Chemical Compounds |
Common Names |
Chemical Formulas |
|
Sodium Bicarbonate |
Baking Soda |
NaHCO3 |
|
Calcium ChlorohypoChlorite |
Bleaching Powder |
CaOCl2 |
|
Sodium Hydroxide |
Caustic Soda |
NaOH |
|
Sodium Carbonate |
Washing Soda |
Na2CO3 .10 H2O |
|
Carbon Dioxide |
Dry Ice |
CO2 |
|
Copper Sulphate |
Blue Vitriol |
CuSO4 |
|
Ferrous Sulphate |
Green Vitriol |
FeSO4 |
|
Sulphuric Acid |
Oil of vitriol |
H2SO4 |
|
Calcium Sulphate Hemihydrate |
Plaster of Paris |
(CaSO4. 1/2H2O) |
|
Calcium Sulphate Dihydrate |
Gypsum |
CaSO4.2H2O |
|
Calcium Hydroxide |
Slaked Lime |
Ca(OH)2 |
|
Sodium nitrate |
Chile Saltpeter |
NaNO3 |
|
Potassium nitrate |
Saltpetre |
KNO3 |
|
Hydrochloric acid |
Muriatic acid |
HCl |
Last updated on Jun 11, 2025
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